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Finding the Fourth Proportional to 6,791.59, 9,372.78 and 3,808.38

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Solution

The fourth proportional to 6,791.59, 9,372.78 and 3,808.38 is: 5,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.59 : 9,372.78 = 3,808.38 : x
  2. Step 2: Convert to fraction form
    6,791.59/9,372.78 = 3,808.38/x
  3. Step 3: Cross multiply
    6,791.59x = 9,372.78 × 3,808.38
  4. Step 4: Simplify right side
    6,791.59x = 35,695,107.90
  5. Step 5: Solve for x
    x = 35,695,107.90/6,791.59
  6. Step 6: Final answer
    x = 5,255.78

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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.