Home / 2,222.46-3,333.78-1,126.53

Finding the Fourth Proportional to 2,222.46, 3,333.78 and 1,126.53

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Solution

The fourth proportional to 2,222.46, 3,333.78 and 1,126.53 is: 1,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.46 : 3,333.78 = 1,126.53 : x
  2. Step 2: Convert to fraction form
    2,222.46/3,333.78 = 1,126.53/x
  3. Step 3: Cross multiply
    2,222.46x = 3,333.78 × 1,126.53
  4. Step 4: Simplify right side
    2,222.46x = 3,755,603.18
  5. Step 5: Solve for x
    x = 3,755,603.18/2,222.46
  6. Step 6: Final answer
    x = 1,689.84

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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.