Proportions Explained: Practice Problems and Examples

High School
Algebra
Pre-Algebra
Ratios, rates, proportions

Recent questions in Ratios, rates, proportions

Lucille Davidson 2021-12-11

To calculate: the total of stamps in the collection and the number of stamps from U.S. in the collection.
Given information:
There are 15 stamps from Canada and they are $\frac{3}{11}$ of the total collection.

compagnia04 2021-12-11

How do you write 3/5 as a percent?

Alfred Martin 2021-12-11

Write 3% as a decimal.

John Stewart 2021-12-11

The solution of the proportion $\frac{7}{4} = \frac{f - 4}{8}$ .

William Boggs 2021-12-11

Directions: Verify the accuracy of determined proportions by checking the equality of the ratios or rates. First number is done for you as your guide.
Proportional Quantities
a) $2 : 70 = 5 : 175$
b) $5 : 10 = 15 : 30$
c) $2 : 14 = 4 : 28$
Cheching the Equality of ratios or rater in the cited proportions?

Victor Wall 2021-12-11

The difference between ratios and rates.

Mary Keefe 2021-12-11

To solve: the given proportion.
Given information:
The given proportion:
$\frac{16}{x + 5} = \frac{4}{5}$

untchick04tm 2021-12-11

The solution of the given equation.
Given:
$7 g - 14 = - 63$

Pamela Meyer 2021-12-11

Whether the given ratios are equivalent ratios or not.
Given: $\frac{29.2}{10.4} and \frac{7.3}{2.6}$

Algotssleeddynf 2021-12-11

Whether the given ratios are equivalent ratios or not.
Given: $\frac{39.68}{60.14} and \frac{6.4}{9.7}$

Shirley Thompson 2021-12-10

The radius r of a sphere is increasing at a rate of 6 inches per minute.
(a) Find the rate of change of the volume when $r = 11$ inches.
(b) Find the rate of change of the volume when $r = 34$ .

diferira7c 2021-12-10

The sum of three consecutive odd integers.
Given: The sum of the first two integers is equal to twenty-four less than four times the third integer, $x + (x + 2) = 4 (x + 4) - 24$

Ben Shaver 2021-12-10

The solution of the proportion $\frac{3}{8} = \frac{15}{a}$

Stacie Worsley 2021-12-10

Whether the ratios $\frac{3}{7}, and \frac{9}{14}$ are equivalent ratios.

agreseza 2021-12-10

Translate and solve using proportions: 7.25% of what number is $43.64?

interdicoxd 2021-12-10

How do you explain ratios and proportions?

Maria Huey 2021-12-10

A class is learning about proportions and ratios, so the teacher decides to look at the students in the local high school. There are 500-600 students and $29 - 32 %$ of the student body participates in athletics. Which of the following is the most reasonable estimate of the number of students who are considered athletes?

Reginald Metcalf 2021-12-09

What does it mean: a 2:1 ratio?

kursval7z 2021-11-25

An ideal Otto cycle has a compression ratio of 10.5, takes in air at 90 kPa and 408C, and is repeated 2500 times per minute. Using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kW of power.

nuais6lfp 2021-11-23

A regular pentagonal prism has 9-cm base edges. A larger, similar prism of the same material has 36-cm base edges. How does each indicated measurement for the larger prism compare to the same measurement for the smaller prism? a. the volume b. the weight.

Since you are looking for a proportions solver for your algebra class or some engineering task, the trick is to explore various proportion examples with answers first as these will help you to answer the most complex challenges and see how things work. As we are dealing with secondary Maths, the majority of presented proportions problems that are shown below are not overly complex. The most important aspect is using the corresponding proportions equation and seeing how to work with ratio rates in practice. Take a look at proportions Math problems, focusing on how they are represented in original instructions.

Pre-Algebra

Mastering Proportions: Problems and Examples