Home / 3,731.64-5,149.35-2,159.43

Finding the Fourth Proportional to 3,731.64, 5,149.35 and 2,159.43

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Solution

The fourth proportional to 3,731.64, 5,149.35 and 2,159.43 is: 2,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.64 : 5,149.35 = 2,159.43 : x
  2. Step 2: Convert to fraction form
    3,731.64/5,149.35 = 2,159.43/x
  3. Step 3: Cross multiply
    3,731.64x = 5,149.35 × 2,159.43
  4. Step 4: Simplify right side
    3,731.64x = 11,119,660.87
  5. Step 5: Solve for x
    x = 11,119,660.87/3,731.64
  6. Step 6: Final answer
    x = 2,979.83

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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.