Proportion 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 set the products equal to each other.

Front

If a train travels 500 miles in 10 hours, how far will it travel in 1 hour?

Back

50 miles.

Front

If a recipe requires 2 cups of flour for 12 cookies, how much flour is needed for 1 cookie?

Back

1/6 cup of flour.

Front

What is the formula to find distance when speed and time are known?

Back

Distance = Speed × Time.

Front

If 1 inch on a map represents 10 miles, how many miles does 4 inches represent?

Back

40 miles.

Front

How do you find the total distance traveled if you know the speed and time?

Back

Multiply the speed by the total time.

Front

If 8 centimeters of tape wraps 4 presents, how much tape is needed for 1 present?

Back

2 centimeters of tape.

Front

What is the relationship between the number of cookies and the amount of flour in a recipe?

Back

It is a direct proportion; as the number of cookies increases, the amount of flour increases.

Front

If a car travels 480 miles in 8 hours, what is its speed?

Back

60 miles per hour.