Home / 2,222.75-3,332.13-1,126.55

Finding the Fourth Proportional to 2,222.75, 3,332.13 and 1,126.55

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Solution

The fourth proportional to 2,222.75, 3,332.13 and 1,126.55 is: 1,688.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.75 : 3,332.13 = 1,126.55 : x
  2. Step 2: Convert to fraction form
    2,222.75/3,332.13 = 1,126.55/x
  3. Step 3: Cross multiply
    2,222.75x = 3,332.13 × 1,126.55
  4. Step 4: Simplify right side
    2,222.75x = 3,753,811.05
  5. Step 5: Solve for x
    x = 3,753,811.05/2,222.75
  6. Step 6: Final answer
    x = 1,688.81

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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.