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Finding the Fourth Proportional to 6,145.56, 8,481.54 and 3,787.68

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Solution

The fourth proportional to 6,145.56, 8,481.54 and 3,787.68 is: 5,227.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.56 : 8,481.54 = 3,787.68 : x
  2. Step 2: Convert to fraction form
    6,145.56/8,481.54 = 3,787.68/x
  3. Step 3: Cross multiply
    6,145.56x = 8,481.54 × 3,787.68
  4. Step 4: Simplify right side
    6,145.56x = 32,125,359.43
  5. Step 5: Solve for x
    x = 32,125,359.43/6,145.56
  6. Step 6: Final answer
    x = 5,227.41

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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.