Home / 7,126.38-10,689.57-3,229.88

Finding the Fourth Proportional to 7,126.38, 10,689.57 and 3,229.88

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Solution

The fourth proportional to 7,126.38, 10,689.57 and 3,229.88 is: 4,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.38 : 10,689.57 = 3,229.88 : x
  2. Step 2: Convert to fraction form
    7,126.38/10,689.57 = 3,229.88/x
  3. Step 3: Cross multiply
    7,126.38x = 10,689.57 × 3,229.88
  4. Step 4: Simplify right side
    7,126.38x = 34,525,974.90
  5. Step 5: Solve for x
    x = 34,525,974.90/7,126.38
  6. Step 6: Final answer
    x = 4,844.81

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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.