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Finding the Fourth Proportional to 6,412.62, 8,847.96 and 3,759.90

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Solution

The fourth proportional to 6,412.62, 8,847.96 and 3,759.90 is: 5,187.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.62 : 8,847.96 = 3,759.90 : x
  2. Step 2: Convert to fraction form
    6,412.62/8,847.96 = 3,759.90/x
  3. Step 3: Cross multiply
    6,412.62x = 8,847.96 × 3,759.90
  4. Step 4: Simplify right side
    6,412.62x = 33,267,444.80
  5. Step 5: Solve for x
    x = 33,267,444.80/6,412.62
  6. Step 6: Final answer
    x = 5,187.81

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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.