Home / 3,747.68-5,171.52-2,175.44

Finding the Fourth Proportional to 3,747.68, 5,171.52 and 2,175.44

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Solution

The fourth proportional to 3,747.68, 5,171.52 and 2,175.44 is: 3,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.68 : 5,171.52 = 2,175.44 : x
  2. Step 2: Convert to fraction form
    3,747.68/5,171.52 = 2,175.44/x
  3. Step 3: Cross multiply
    3,747.68x = 5,171.52 × 2,175.44
  4. Step 4: Simplify right side
    3,747.68x = 11,250,331.47
  5. Step 5: Solve for x
    x = 11,250,331.47/3,747.68
  6. Step 6: Final answer
    x = 3,001.95

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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.