Home / 3,993.20-5,985.18-3,531.92

Finding the Fourth Proportional to 3,993.20, 5,985.18 and 3,531.92

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Solution

The fourth proportional to 3,993.20, 5,985.18 and 3,531.92 is: 5,293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.20 : 5,985.18 = 3,531.92 : x
  2. Step 2: Convert to fraction form
    3,993.20/5,985.18 = 3,531.92/x
  3. Step 3: Cross multiply
    3,993.20x = 5,985.18 × 3,531.92
  4. Step 4: Simplify right side
    3,993.20x = 21,139,176.95
  5. Step 5: Solve for x
    x = 21,139,176.95/3,993.20
  6. Step 6: Final answer
    x = 5,293.79

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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.