Finding the Fourth Proportional to 37.33, 55.90 and 31.99
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Solution
The fourth proportional to 37.33, 55.90 and 31.99 is: 47.90
Step by Step Solution
- Step 1: Write the proportion equation
37.33 : 55.90 = 31.99 : x - Step 2: Convert to fraction form
37.33/55.90 = 31.99/x - Step 3: Cross multiply
37.33x = 55.90 × 31.99 - Step 4: Simplify right side
37.33x = 1,787.96 - Step 5: Solve for x
x = 1,787.96/37.33 - Step 6: Final answer
x = 47.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.