Home / 2,222.80-3,334.20-2,206.60

Finding the Fourth Proportional to 2,222.80, 3,334.20 and 2,206.60

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Solution

The fourth proportional to 2,222.80, 3,334.20 and 2,206.60 is: 3,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.80 : 3,334.20 = 2,206.60 : x
  2. Step 2: Convert to fraction form
    2,222.80/3,334.20 = 2,206.60/x
  3. Step 3: Cross multiply
    2,222.80x = 3,334.20 × 2,206.60
  4. Step 4: Simplify right side
    2,222.80x = 7,357,245.72
  5. Step 5: Solve for x
    x = 7,357,245.72/2,222.80
  6. Step 6: Final answer
    x = 3,309.90

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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.