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Finding the Fourth Proportional to 4,909.03, 6,771 and 3,229.90

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Solution

The fourth proportional to 4,909.03, 6,771 and 3,229.90 is: 4,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.03 : 6,771 = 3,229.90 : x
  2. Step 2: Convert to fraction form
    4,909.03/6,771 = 3,229.90/x
  3. Step 3: Cross multiply
    4,909.03x = 6,771 × 3,229.90
  4. Step 4: Simplify right side
    4,909.03x = 21,869,652.90
  5. Step 5: Solve for x
    x = 21,869,652.90/4,909.03
  6. Step 6: Final answer
    x = 4,454.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.