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Finding the Fourth Proportional to 2,934.97, 4,402.46 and 743.70

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Solution

The fourth proportional to 2,934.97, 4,402.46 and 743.70 is: 1,115.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934.97 : 4,402.46 = 743.70 : x
  2. Step 2: Convert to fraction form
    2,934.97/4,402.46 = 743.70/x
  3. Step 3: Cross multiply
    2,934.97x = 4,402.46 × 743.70
  4. Step 4: Simplify right side
    2,934.97x = 3,274,109.50
  5. Step 5: Solve for x
    x = 3,274,109.50/2,934.97
  6. Step 6: Final answer
    x = 1,115.55

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Similar ratio
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1.5x scale

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.