Home / 3,997.89-5,517.02-2,319.58

Finding the Fourth Proportional to 3,997.89, 5,517.02 and 2,319.58

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Solution

The fourth proportional to 3,997.89, 5,517.02 and 2,319.58 is: 3,200.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.89 : 5,517.02 = 2,319.58 : x
  2. Step 2: Convert to fraction form
    3,997.89/5,517.02 = 2,319.58/x
  3. Step 3: Cross multiply
    3,997.89x = 5,517.02 × 2,319.58
  4. Step 4: Simplify right side
    3,997.89x = 12,797,161.26
  5. Step 5: Solve for x
    x = 12,797,161.26/3,997.89
  6. Step 6: Final answer
    x = 3,200.98

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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.