Home / 2,761.46-4,139-1,375.74

Finding the Fourth Proportional to 2,761.46, 4,139 and 1,375.74

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Solution

The fourth proportional to 2,761.46, 4,139 and 1,375.74 is: 2,062.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.46 : 4,139 = 1,375.74 : x
  2. Step 2: Convert to fraction form
    2,761.46/4,139 = 1,375.74/x
  3. Step 3: Cross multiply
    2,761.46x = 4,139 × 1,375.74
  4. Step 4: Simplify right side
    2,761.46x = 5,694,187.86
  5. Step 5: Solve for x
    x = 5,694,187.86/2,761.46
  6. Step 6: Final answer
    x = 2,062.02

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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.