Home / 3,891.08-5,397.20-3,750.98

Finding the Fourth Proportional to 3,891.08, 5,397.20 and 3,750.98

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Solution

The fourth proportional to 3,891.08, 5,397.20 and 3,750.98 is: 5,202.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.08 : 5,397.20 = 3,750.98 : x
  2. Step 2: Convert to fraction form
    3,891.08/5,397.20 = 3,750.98/x
  3. Step 3: Cross multiply
    3,891.08x = 5,397.20 × 3,750.98
  4. Step 4: Simplify right side
    3,891.08x = 20,244,789.26
  5. Step 5: Solve for x
    x = 20,244,789.26/3,891.08
  6. Step 6: Final answer
    x = 5,202.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.