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Finding the Fourth Proportional to 951.73, 1,313.45 and 532.21

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Solution

The fourth proportional to 951.73, 1,313.45 and 532.21 is: 734.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.73 : 1,313.45 = 532.21 : x
  2. Step 2: Convert to fraction form
    951.73/1,313.45 = 532.21/x
  3. Step 3: Cross multiply
    951.73x = 1,313.45 × 532.21
  4. Step 4: Simplify right side
    951.73x = 699,031.22
  5. Step 5: Solve for x
    x = 699,031.22/951.73
  6. Step 6: Final answer
    x = 734.48

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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.