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Finding the Fourth Proportional to 951.79, 1,313.35 and 532.17

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Solution

The fourth proportional to 951.79, 1,313.35 and 532.17 is: 734.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.79 : 1,313.35 = 532.17 : x
  2. Step 2: Convert to fraction form
    951.79/1,313.35 = 532.17/x
  3. Step 3: Cross multiply
    951.79x = 1,313.35 × 532.17
  4. Step 4: Simplify right side
    951.79x = 698,917.57
  5. Step 5: Solve for x
    x = 698,917.57/951.79
  6. Step 6: Final answer
    x = 734.32

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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.