Home / 3,218.90-4,441.11-2,340.86

Finding the Fourth Proportional to 3,218.90, 4,441.11 and 2,340.86

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Solution

The fourth proportional to 3,218.90, 4,441.11 and 2,340.86 is: 3,229.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.90 : 4,441.11 = 2,340.86 : x
  2. Step 2: Convert to fraction form
    3,218.90/4,441.11 = 2,340.86/x
  3. Step 3: Cross multiply
    3,218.90x = 4,441.11 × 2,340.86
  4. Step 4: Simplify right side
    3,218.90x = 10,396,016.75
  5. Step 5: Solve for x
    x = 10,396,016.75/3,218.90
  6. Step 6: Final answer
    x = 3,229.68

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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.