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Finding the Fourth Proportional to 951.75, 1,427.91 and 403.97

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Solution

The fourth proportional to 951.75, 1,427.91 and 403.97 is: 606.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.75 : 1,427.91 = 403.97 : x
  2. Step 2: Convert to fraction form
    951.75/1,427.91 = 403.97/x
  3. Step 3: Cross multiply
    951.75x = 1,427.91 × 403.97
  4. Step 4: Simplify right side
    951.75x = 576,839.62
  5. Step 5: Solve for x
    x = 576,839.62/951.75
  6. Step 6: Final answer
    x = 606.08

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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.