Home / 3,761.43-5,191.38-2,269.57

Finding the Fourth Proportional to 3,761.43, 5,191.38 and 2,269.57

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Solution

The fourth proportional to 3,761.43, 5,191.38 and 2,269.57 is: 3,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.43 : 5,191.38 = 2,269.57 : x
  2. Step 2: Convert to fraction form
    3,761.43/5,191.38 = 2,269.57/x
  3. Step 3: Cross multiply
    3,761.43x = 5,191.38 × 2,269.57
  4. Step 4: Simplify right side
    3,761.43x = 11,782,200.31
  5. Step 5: Solve for x
    x = 11,782,200.31/3,761.43
  6. Step 6: Final answer
    x = 3,132.37

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Half scale
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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.