Home / 3,229.40-4,454.49-2,220.65

Finding the Fourth Proportional to 3,229.40, 4,454.49 and 2,220.65

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Solution

The fourth proportional to 3,229.40, 4,454.49 and 2,220.65 is: 3,063.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.40 : 4,454.49 = 2,220.65 : x
  2. Step 2: Convert to fraction form
    3,229.40/4,454.49 = 2,220.65/x
  3. Step 3: Cross multiply
    3,229.40x = 4,454.49 × 2,220.65
  4. Step 4: Simplify right side
    3,229.40x = 9,891,865.98
  5. Step 5: Solve for x
    x = 9,891,865.98/3,229.40
  6. Step 6: Final answer
    x = 3,063.06

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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.