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Finding the Fourth Proportional to 6,333.64, 8,739.84 and 3,971.68

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Solution

The fourth proportional to 6,333.64, 8,739.84 and 3,971.68 is: 5,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,333.64 : 8,739.84 = 3,971.68 : x
  2. Step 2: Convert to fraction form
    6,333.64/8,739.84 = 3,971.68/x
  3. Step 3: Cross multiply
    6,333.64x = 8,739.84 × 3,971.68
  4. Step 4: Simplify right side
    6,333.64x = 34,711,847.73
  5. Step 5: Solve for x
    x = 34,711,847.73/6,333.64
  6. Step 6: Final answer
    x = 5,480.55

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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.