Home / 6,187.90-9,279.69-2,489.17

Finding the Fourth Proportional to 6,187.90, 9,279.69 and 2,489.17

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Solution

The fourth proportional to 6,187.90, 9,279.69 and 2,489.17 is: 3,732.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,187.90 : 9,279.69 = 2,489.17 : x
  2. Step 2: Convert to fraction form
    6,187.90/9,279.69 = 2,489.17/x
  3. Step 3: Cross multiply
    6,187.90x = 9,279.69 × 2,489.17
  4. Step 4: Simplify right side
    6,187.90x = 23,098,696.54
  5. Step 5: Solve for x
    x = 23,098,696.54/6,187.90
  6. Step 6: Final answer
    x = 3,732.88

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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.