Finding the Fourth Proportional to 52.98, 79.49 and 38.58
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Solution
The fourth proportional to 52.98, 79.49 and 38.58 is: 57.88
Step by Step Solution
- Step 1: Write the proportion equation
52.98 : 79.49 = 38.58 : x - Step 2: Convert to fraction form
52.98/79.49 = 38.58/x - Step 3: Cross multiply
52.98x = 79.49 × 38.58 - Step 4: Simplify right side
52.98x = 3,066.72 - Step 5: Solve for x
x = 3,066.72/52.98 - Step 6: Final answer
x = 57.88
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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.