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Finding the Fourth Proportional to 951.39, 1,312.92 and 537.39

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Solution

The fourth proportional to 951.39, 1,312.92 and 537.39 is: 741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.39 : 1,312.92 = 537.39 : x
  2. Step 2: Convert to fraction form
    951.39/1,312.92 = 537.39/x
  3. Step 3: Cross multiply
    951.39x = 1,312.92 × 537.39
  4. Step 4: Simplify right side
    951.39x = 705,550.08
  5. Step 5: Solve for x
    x = 705,550.08/951.39
  6. Step 6: Final answer
    x = 741.60

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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.