Home / 7,931.29-11,898.31-3,253.85

Finding the Fourth Proportional to 7,931.29, 11,898.31 and 3,253.85

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Solution

The fourth proportional to 7,931.29, 11,898.31 and 3,253.85 is: 4,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.29 : 11,898.31 = 3,253.85 : x
  2. Step 2: Convert to fraction form
    7,931.29/11,898.31 = 3,253.85/x
  3. Step 3: Cross multiply
    7,931.29x = 11,898.31 × 3,253.85
  4. Step 4: Simplify right side
    7,931.29x = 38,715,251.90
  5. Step 5: Solve for x
    x = 38,715,251.90/7,931.29
  6. Step 6: Final answer
    x = 4,881.33

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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.