Home / 7,882.39-11,823.92-2,617.87

Finding the Fourth Proportional to 7,882.39, 11,823.92 and 2,617.87

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Solution

The fourth proportional to 7,882.39, 11,823.92 and 2,617.87 is: 3,926.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.39 : 11,823.92 = 2,617.87 : x
  2. Step 2: Convert to fraction form
    7,882.39/11,823.92 = 2,617.87/x
  3. Step 3: Cross multiply
    7,882.39x = 11,823.92 × 2,617.87
  4. Step 4: Simplify right side
    7,882.39x = 30,953,472.36
  5. Step 5: Solve for x
    x = 30,953,472.36/7,882.39
  6. Step 6: Final answer
    x = 3,926.91

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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.