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Finding the Fourth Proportional to 6,481.71, 8,936.57 and 4,240.04

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Solution

The fourth proportional to 6,481.71, 8,936.57 and 4,240.04 is: 5,845.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.71 : 8,936.57 = 4,240.04 : x
  2. Step 2: Convert to fraction form
    6,481.71/8,936.57 = 4,240.04/x
  3. Step 3: Cross multiply
    6,481.71x = 8,936.57 × 4,240.04
  4. Step 4: Simplify right side
    6,481.71x = 37,891,380.18
  5. Step 5: Solve for x
    x = 37,891,380.18/6,481.71
  6. Step 6: Final answer
    x = 5,845.89

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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.