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Finding the Fourth Proportional to 6,241.87, 8,613.78 and 3,589.80

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Solution

The fourth proportional to 6,241.87, 8,613.78 and 3,589.80 is: 4,953.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,241.87 : 8,613.78 = 3,589.80 : x
  2. Step 2: Convert to fraction form
    6,241.87/8,613.78 = 3,589.80/x
  3. Step 3: Cross multiply
    6,241.87x = 8,613.78 × 3,589.80
  4. Step 4: Simplify right side
    6,241.87x = 30,921,747.44
  5. Step 5: Solve for x
    x = 30,921,747.44/6,241.87
  6. Step 6: Final answer
    x = 4,953.92

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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.