Proportions Word Problems

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the two ratios and then solve for the unknown variable.

Front

If 2 customers are served in 8 minutes, how many customers can be served in 30 minutes?

Back

7.5 customers.

Front

What is the scale of a map?

Back

The scale of a map is the ratio of a distance on the map to the actual distance it represents.

Front

If Fairview and Rockville are 104 miles apart, how far apart are they on a map with a scale of 1 cm : 13 miles?

Back

8 cm.

Front

How do you find the height of an enlarged painting if the width is increased?

Back

Use the ratio of the original dimensions to find the new height based on the new width.

Front

If Pat needs 14 sticks of pepperoni for 28 pizzas, how many sticks are needed for 36 pizzas?

Back

18 sticks.

Front

What is the formula to find the time taken to read a book based on pages read per hour?

Back

Time = (Total pages / Pages read per hour).

Front

If I read 146 pages in 3 hours, how long will it take to read 390 pages?

Back

8 hours.

Front

What is the relationship between width and height in similar figures?

Back

The width and height of similar figures are proportional.