Finding the Fourth Proportional to 38.91, 57.99 and 37.95
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Solution
The fourth proportional to 38.91, 57.99 and 37.95 is: 56.56
Step by Step Solution
- Step 1: Write the proportion equation
38.91 : 57.99 = 37.95 : x - Step 2: Convert to fraction form
38.91/57.99 = 37.95/x - Step 3: Cross multiply
38.91x = 57.99 × 37.95 - Step 4: Simplify right side
38.91x = 2,200.72 - Step 5: Solve for x
x = 2,200.72/38.91 - Step 6: Final answer
x = 56.56
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.