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Finding the Fourth Proportional to 6,613.78, 9,126.92 and 3,629.46

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Solution

The fourth proportional to 6,613.78, 9,126.92 and 3,629.46 is: 5,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.78 : 9,126.92 = 3,629.46 : x
  2. Step 2: Convert to fraction form
    6,613.78/9,126.92 = 3,629.46/x
  3. Step 3: Cross multiply
    6,613.78x = 9,126.92 × 3,629.46
  4. Step 4: Simplify right side
    6,613.78x = 33,125,791.06
  5. Step 5: Solve for x
    x = 33,125,791.06/6,613.78
  6. Step 6: Final answer
    x = 5,008.60

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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.