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Finding the Fourth Proportional to 6,339.41, 8,740.42 and 4,066.73

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Solution

The fourth proportional to 6,339.41, 8,740.42 and 4,066.73 is: 5,606.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.41 : 8,740.42 = 4,066.73 : x
  2. Step 2: Convert to fraction form
    6,339.41/8,740.42 = 4,066.73/x
  3. Step 3: Cross multiply
    6,339.41x = 8,740.42 × 4,066.73
  4. Step 4: Simplify right side
    6,339.41x = 35,544,937.44
  5. Step 5: Solve for x
    x = 35,544,937.44/6,339.41
  6. Step 6: Final answer
    x = 5,606.97

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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.