Home / 3,861.10-5,791.65-2,613.70

Finding the Fourth Proportional to 3,861.10, 5,791.65 and 2,613.70

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Solution

The fourth proportional to 3,861.10, 5,791.65 and 2,613.70 is: 3,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.10 : 5,791.65 = 2,613.70 : x
  2. Step 2: Convert to fraction form
    3,861.10/5,791.65 = 2,613.70/x
  3. Step 3: Cross multiply
    3,861.10x = 5,791.65 × 2,613.70
  4. Step 4: Simplify right side
    3,861.10x = 15,137,635.61
  5. Step 5: Solve for x
    x = 15,137,635.61/3,861.10
  6. Step 6: Final answer
    x = 3,920.55

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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.