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

What is the formula for finding the total number of quizzes based on weeks?

Back

Total quizzes = (Quizzes per week) x (Number of weeks).

Front

If 24 water bottles weigh 30 pounds, how do you find the weight of 150 water bottles?

Back

Use the proportion: 24/30 = 150/x, then cross-multiply and solve for x.

Front

What is the unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit.

Front

How do you find the unit rate of Jocelyn's earnings?

Back

Divide the total earnings by the total hours worked: $27 / 3 hours = $9 per hour.

Front

What is the relationship between tape used and presents wrapped in Danielle's problem?

Back

The relationship is a direct proportion; as the amount of tape increases, the number of presents wrapped also increases.

Front

How can you determine the maximum number of attendees for an event based on cost?

Back

Divide the total budget by the cost per attendee to find the maximum number of attendees.

Front

What is the cross-multiplication method?

Back

Cross-multiplication is a method used to solve proportions by multiplying the numerator of one ratio by the denominator of the other ratio.

Front

If a recipe calls for 2 cups of flour for 4 servings, how much flour is needed for 10 servings?

Back

Use the proportion: 2/4 = x/10, then cross-multiply to find x = 5 cups.