Home / 2,489.26-3,731.85-1,172.37

Finding the Fourth Proportional to 2,489.26, 3,731.85 and 1,172.37

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Solution

The fourth proportional to 2,489.26, 3,731.85 and 1,172.37 is: 1,757.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.26 : 3,731.85 = 1,172.37 : x
  2. Step 2: Convert to fraction form
    2,489.26/3,731.85 = 1,172.37/x
  3. Step 3: Cross multiply
    2,489.26x = 3,731.85 × 1,172.37
  4. Step 4: Simplify right side
    2,489.26x = 4,375,103.12
  5. Step 5: Solve for x
    x = 4,375,103.12/2,489.26
  6. Step 6: Final answer
    x = 1,757.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.