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Finding the Fourth Proportional to 6,481.65, 8,944.71 and 3,687.15

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Solution

The fourth proportional to 6,481.65, 8,944.71 and 3,687.15 is: 5,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.65 : 8,944.71 = 3,687.15 : x
  2. Step 2: Convert to fraction form
    6,481.65/8,944.71 = 3,687.15/x
  3. Step 3: Cross multiply
    6,481.65x = 8,944.71 × 3,687.15
  4. Step 4: Simplify right side
    6,481.65x = 32,980,487.48
  5. Step 5: Solve for x
    x = 32,980,487.48/6,481.65
  6. Step 6: Final answer
    x = 5,088.29

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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.