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Finding the Fourth Proportional to 3,997.26, 5,995.90 and 1,399.59

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Solution

The fourth proportional to 3,997.26, 5,995.90 and 1,399.59 is: 2,099.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.26 : 5,995.90 = 1,399.59 : x
  2. Step 2: Convert to fraction form
    3,997.26/5,995.90 = 1,399.59/x
  3. Step 3: Cross multiply
    3,997.26x = 5,995.90 × 1,399.59
  4. Step 4: Simplify right side
    3,997.26x = 8,391,803.43
  5. Step 5: Solve for x
    x = 8,391,803.43/3,997.26
  6. Step 6: Final answer
    x = 2,099.39

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.