Home / 6,613.05-9,125.31-3,781.16

Finding the Fourth Proportional to 6,613.05, 9,125.31 and 3,781.16

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Solution

The fourth proportional to 6,613.05, 9,125.31 and 3,781.16 is: 5,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.05 : 9,125.31 = 3,781.16 : x
  2. Step 2: Convert to fraction form
    6,613.05/9,125.31 = 3,781.16/x
  3. Step 3: Cross multiply
    6,613.05x = 9,125.31 × 3,781.16
  4. Step 4: Simplify right side
    6,613.05x = 34,504,211.53
  5. Step 5: Solve for x
    x = 34,504,211.53/6,613.05
  6. Step 6: Final answer
    x = 5,217.59

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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.