Home / 2,761.43-4,142.18-1,531.25

Finding the Fourth Proportional to 2,761.43, 4,142.18 and 1,531.25

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Solution

The fourth proportional to 2,761.43, 4,142.18 and 1,531.25 is: 2,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.43 : 4,142.18 = 1,531.25 : x
  2. Step 2: Convert to fraction form
    2,761.43/4,142.18 = 1,531.25/x
  3. Step 3: Cross multiply
    2,761.43x = 4,142.18 × 1,531.25
  4. Step 4: Simplify right side
    2,761.43x = 6,342,696.24
  5. Step 5: Solve for x
    x = 6,342,696.24/2,761.43
  6. Step 6: Final answer
    x = 2,296.89

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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.