Home / 3,985.85-5,974.02-2,229.86

Finding the Fourth Proportional to 3,985.85, 5,974.02 and 2,229.86

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Solution

The fourth proportional to 3,985.85, 5,974.02 and 2,229.86 is: 3,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.85 : 5,974.02 = 2,229.86 : x
  2. Step 2: Convert to fraction form
    3,985.85/5,974.02 = 2,229.86/x
  3. Step 3: Cross multiply
    3,985.85x = 5,974.02 × 2,229.86
  4. Step 4: Simplify right side
    3,985.85x = 13,321,198.37
  5. Step 5: Solve for x
    x = 13,321,198.37/3,985.85
  6. Step 6: Final answer
    x = 3,342.13

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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.