Home / 6,128.38-9,192.57-2,231.88

Finding the Fourth Proportional to 6,128.38, 9,192.57 and 2,231.88

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Solution

The fourth proportional to 6,128.38, 9,192.57 and 2,231.88 is: 3,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.38 : 9,192.57 = 2,231.88 : x
  2. Step 2: Convert to fraction form
    6,128.38/9,192.57 = 2,231.88/x
  3. Step 3: Cross multiply
    6,128.38x = 9,192.57 × 2,231.88
  4. Step 4: Simplify right side
    6,128.38x = 20,516,713.13
  5. Step 5: Solve for x
    x = 20,516,713.13/6,128.38
  6. Step 6: Final answer
    x = 3,347.82

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Similar ratio
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1.5x scale

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.