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Finding the Fourth Proportional to 3,609.62, 5,414.28 and 1,976.52

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Solution

The fourth proportional to 3,609.62, 5,414.28 and 1,976.52 is: 2,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.62 : 5,414.28 = 1,976.52 : x
  2. Step 2: Convert to fraction form
    3,609.62/5,414.28 = 1,976.52/x
  3. Step 3: Cross multiply
    3,609.62x = 5,414.28 × 1,976.52
  4. Step 4: Simplify right side
    3,609.62x = 10,701,432.71
  5. Step 5: Solve for x
    x = 10,701,432.71/3,609.62
  6. Step 6: Final answer
    x = 2,964.70

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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.