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Finding the Fourth Proportional to 3,432.90, 5,149.64 and 967.74

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Solution

The fourth proportional to 3,432.90, 5,149.64 and 967.74 is: 1,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.90 : 5,149.64 = 967.74 : x
  2. Step 2: Convert to fraction form
    3,432.90/5,149.64 = 967.74/x
  3. Step 3: Cross multiply
    3,432.90x = 5,149.64 × 967.74
  4. Step 4: Simplify right side
    3,432.90x = 4,983,512.61
  5. Step 5: Solve for x
    x = 4,983,512.61/3,432.90
  6. Step 6: Final answer
    x = 1,451.69

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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.