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Finding the Fourth Proportional to 6,449.40, 8,899.92 and 3,654.84

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Solution

The fourth proportional to 6,449.40, 8,899.92 and 3,654.84 is: 5,043.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.40 : 8,899.92 = 3,654.84 : x
  2. Step 2: Convert to fraction form
    6,449.40/8,899.92 = 3,654.84/x
  3. Step 3: Cross multiply
    6,449.40x = 8,899.92 × 3,654.84
  4. Step 4: Simplify right side
    6,449.40x = 32,527,783.61
  5. Step 5: Solve for x
    x = 32,527,783.61/6,449.40
  6. Step 6: Final answer
    x = 5,043.54

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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.