Home / 3,997.24-5,997.30-1,400.20

Finding the Fourth Proportional to 3,997.24, 5,997.30 and 1,400.20

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Solution

The fourth proportional to 3,997.24, 5,997.30 and 1,400.20 is: 2,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.24 : 5,997.30 = 1,400.20 : x
  2. Step 2: Convert to fraction form
    3,997.24/5,997.30 = 1,400.20/x
  3. Step 3: Cross multiply
    3,997.24x = 5,997.30 × 1,400.20
  4. Step 4: Simplify right side
    3,997.24x = 8,397,419.46
  5. Step 5: Solve for x
    x = 8,397,419.46/3,997.24
  6. Step 6: Final answer
    x = 2,100.80

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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.