Home / 7,839.38-11,757.24-2,291.55

Finding the Fourth Proportional to 7,839.38, 11,757.24 and 2,291.55

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Solution

The fourth proportional to 7,839.38, 11,757.24 and 2,291.55 is: 3,436.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.38 : 11,757.24 = 2,291.55 : x
  2. Step 2: Convert to fraction form
    7,839.38/11,757.24 = 2,291.55/x
  3. Step 3: Cross multiply
    7,839.38x = 11,757.24 × 2,291.55
  4. Step 4: Simplify right side
    7,839.38x = 26,942,303.32
  5. Step 5: Solve for x
    x = 26,942,303.32/7,839.38
  6. Step 6: Final answer
    x = 3,436.79

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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.