Home / 3,220.04-4,443.12-2,040.80

Finding the Fourth Proportional to 3,220.04, 4,443.12 and 2,040.80

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Solution

The fourth proportional to 3,220.04, 4,443.12 and 2,040.80 is: 2,815.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.04 : 4,443.12 = 2,040.80 : x
  2. Step 2: Convert to fraction form
    3,220.04/4,443.12 = 2,040.80/x
  3. Step 3: Cross multiply
    3,220.04x = 4,443.12 × 2,040.80
  4. Step 4: Simplify right side
    3,220.04x = 9,067,519.30
  5. Step 5: Solve for x
    x = 9,067,519.30/3,220.04
  6. Step 6: Final answer
    x = 2,815.96

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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.