Home / 4,158.38-5,721.36-3,157.85

Finding the Fourth Proportional to 4,158.38, 5,721.36 and 3,157.85

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Solution

The fourth proportional to 4,158.38, 5,721.36 and 3,157.85 is: 4,344.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,158.38 : 5,721.36 = 3,157.85 : x
  2. Step 2: Convert to fraction form
    4,158.38/5,721.36 = 3,157.85/x
  3. Step 3: Cross multiply
    4,158.38x = 5,721.36 × 3,157.85
  4. Step 4: Simplify right side
    4,158.38x = 18,067,196.68
  5. Step 5: Solve for x
    x = 18,067,196.68/4,158.38
  6. Step 6: Final answer
    x = 4,344.77

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Double scale
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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.