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Finding the Fourth Proportional to 6,481.54, 8,945.62 and 3,650.18

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Solution

The fourth proportional to 6,481.54, 8,945.62 and 3,650.18 is: 5,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.54 : 8,945.62 = 3,650.18 : x
  2. Step 2: Convert to fraction form
    6,481.54/8,945.62 = 3,650.18/x
  3. Step 3: Cross multiply
    6,481.54x = 8,945.62 × 3,650.18
  4. Step 4: Simplify right side
    6,481.54x = 32,653,123.21
  5. Step 5: Solve for x
    x = 32,653,123.21/6,481.54
  6. Step 6: Final answer
    x = 5,037.86

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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.