Home / 2,222.73-3,331.31-1,127.39

Finding the Fourth Proportional to 2,222.73, 3,331.31 and 1,127.39

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Solution

The fourth proportional to 2,222.73, 3,331.31 and 1,127.39 is: 1,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.73 : 3,331.31 = 1,127.39 : x
  2. Step 2: Convert to fraction form
    2,222.73/3,331.31 = 1,127.39/x
  3. Step 3: Cross multiply
    2,222.73x = 3,331.31 × 1,127.39
  4. Step 4: Simplify right side
    2,222.73x = 3,755,663.29
  5. Step 5: Solve for x
    x = 3,755,663.29/2,222.73
  6. Step 6: Final answer
    x = 1,689.66

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1.5x scale

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.