Home / 2,694.60-4,042.17-939.74

Finding the Fourth Proportional to 2,694.60, 4,042.17 and 939.74

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Solution

The fourth proportional to 2,694.60, 4,042.17 and 939.74 is: 1,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694.60 : 4,042.17 = 939.74 : x
  2. Step 2: Convert to fraction form
    2,694.60/4,042.17 = 939.74/x
  3. Step 3: Cross multiply
    2,694.60x = 4,042.17 × 939.74
  4. Step 4: Simplify right side
    2,694.60x = 3,798,568.62
  5. Step 5: Solve for x
    x = 3,798,568.62/2,694.60
  6. Step 6: Final answer
    x = 1,409.70

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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.