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Finding the Fourth Proportional to 6,640.43, 9,163.94 and 3,656.52

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Solution

The fourth proportional to 6,640.43, 9,163.94 and 3,656.52 is: 5,046.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.43 : 9,163.94 = 3,656.52 : x
  2. Step 2: Convert to fraction form
    6,640.43/9,163.94 = 3,656.52/x
  3. Step 3: Cross multiply
    6,640.43x = 9,163.94 × 3,656.52
  4. Step 4: Simplify right side
    6,640.43x = 33,508,111.61
  5. Step 5: Solve for x
    x = 33,508,111.61/6,640.43
  6. Step 6: Final answer
    x = 5,046.08

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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.