Home / 2,222.57-3,335.94-1,127.72

Finding the Fourth Proportional to 2,222.57, 3,335.94 and 1,127.72

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Solution

The fourth proportional to 2,222.57, 3,335.94 and 1,127.72 is: 1,692.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.57 : 3,335.94 = 1,127.72 : x
  2. Step 2: Convert to fraction form
    2,222.57/3,335.94 = 1,127.72/x
  3. Step 3: Cross multiply
    2,222.57x = 3,335.94 × 1,127.72
  4. Step 4: Simplify right side
    2,222.57x = 3,761,989.58
  5. Step 5: Solve for x
    x = 3,761,989.58/2,222.57
  6. Step 6: Final answer
    x = 1,692.63

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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.