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Finding the Fourth Proportional to 951.58, 1,313.02 and 531.86

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Solution

The fourth proportional to 951.58, 1,313.02 and 531.86 is: 733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.58 : 1,313.02 = 531.86 : x
  2. Step 2: Convert to fraction form
    951.58/1,313.02 = 531.86/x
  3. Step 3: Cross multiply
    951.58x = 1,313.02 × 531.86
  4. Step 4: Simplify right side
    951.58x = 698,336.92
  5. Step 5: Solve for x
    x = 698,336.92/951.58
  6. Step 6: Final answer
    x = 733.87

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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.