Home / 2,731.38-3,769.30-1,489.38

Finding the Fourth Proportional to 2,731.38, 3,769.30 and 1,489.38

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Solution

The fourth proportional to 2,731.38, 3,769.30 and 1,489.38 is: 2,055.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.38 : 3,769.30 = 1,489.38 : x
  2. Step 2: Convert to fraction form
    2,731.38/3,769.30 = 1,489.38/x
  3. Step 3: Cross multiply
    2,731.38x = 3,769.30 × 1,489.38
  4. Step 4: Simplify right side
    2,731.38x = 5,613,920.03
  5. Step 5: Solve for x
    x = 5,613,920.03/2,731.38
  6. Step 6: Final answer
    x = 2,055.34

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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.