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Finding the Fourth Proportional to 6,424.30, 8,865.41 and 3,591.73

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Solution

The fourth proportional to 6,424.30, 8,865.41 and 3,591.73 is: 4,956.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,424.30 : 8,865.41 = 3,591.73 : x
  2. Step 2: Convert to fraction form
    6,424.30/8,865.41 = 3,591.73/x
  3. Step 3: Cross multiply
    6,424.30x = 8,865.41 × 3,591.73
  4. Step 4: Simplify right side
    6,424.30x = 31,842,096.77
  5. Step 5: Solve for x
    x = 31,842,096.77/6,424.30
  6. Step 6: Final answer
    x = 4,956.51

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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.