Home / 7,791.38-11,669.64-3,625.15

Finding the Fourth Proportional to 7,791.38, 11,669.64 and 3,625.15

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Solution

The fourth proportional to 7,791.38, 11,669.64 and 3,625.15 is: 5,429.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.38 : 11,669.64 = 3,625.15 : x
  2. Step 2: Convert to fraction form
    7,791.38/11,669.64 = 3,625.15/x
  3. Step 3: Cross multiply
    7,791.38x = 11,669.64 × 3,625.15
  4. Step 4: Simplify right side
    7,791.38x = 42,304,166.27
  5. Step 5: Solve for x
    x = 42,304,166.27/7,791.38
  6. Step 6: Final answer
    x = 5,429.61

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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.