Home / 7,934.40-11,901.54-2,387.72

Finding the Fourth Proportional to 7,934.40, 11,901.54 and 2,387.72

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Solution

The fourth proportional to 7,934.40, 11,901.54 and 2,387.72 is: 3,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.40 : 11,901.54 = 2,387.72 : x
  2. Step 2: Convert to fraction form
    7,934.40/11,901.54 = 2,387.72/x
  3. Step 3: Cross multiply
    7,934.40x = 11,901.54 × 2,387.72
  4. Step 4: Simplify right side
    7,934.40x = 28,417,545.09
  5. Step 5: Solve for x
    x = 28,417,545.09/7,934.40
  6. Step 6: Final answer
    x = 3,581.56

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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.