Home / 3,731.38-5,149.30-2,159.57

Finding the Fourth Proportional to 3,731.38, 5,149.30 and 2,159.57

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Solution

The fourth proportional to 3,731.38, 5,149.30 and 2,159.57 is: 2,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.38 : 5,149.30 = 2,159.57 : x
  2. Step 2: Convert to fraction form
    3,731.38/5,149.30 = 2,159.57/x
  3. Step 3: Cross multiply
    3,731.38x = 5,149.30 × 2,159.57
  4. Step 4: Simplify right side
    3,731.38x = 11,120,273.80
  5. Step 5: Solve for x
    x = 11,120,273.80/3,731.38
  6. Step 6: Final answer
    x = 2,980.20

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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.