Home / 5,143.38-7,091.24-4,198.20

Finding the Fourth Proportional to 5,143.38, 7,091.24 and 4,198.20

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Solution

The fourth proportional to 5,143.38, 7,091.24 and 4,198.20 is: 5,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.38 : 7,091.24 = 4,198.20 : x
  2. Step 2: Convert to fraction form
    5,143.38/7,091.24 = 4,198.20/x
  3. Step 3: Cross multiply
    5,143.38x = 7,091.24 × 4,198.20
  4. Step 4: Simplify right side
    5,143.38x = 29,770,422.78
  5. Step 5: Solve for x
    x = 29,770,422.78/5,143.38
  6. Step 6: Final answer
    x = 5,788.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.