Finding the Fourth Proportional to 691.24, 954.08 and 425.76
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Solution
The fourth proportional to 691.24, 954.08 and 425.76 is: 587.65
Step by Step Solution
- Step 1: Write the proportion equation
691.24 : 954.08 = 425.76 : x - Step 2: Convert to fraction form
691.24/954.08 = 425.76/x - Step 3: Cross multiply
691.24x = 954.08 × 425.76 - Step 4: Simplify right side
691.24x = 406,209.10 - Step 5: Solve for x
x = 406,209.10/691.24 - Step 6: Final answer
x = 587.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.