Home / 1,227.12-1,694.05-946.73

Finding the Fourth Proportional to 1,227.12, 1,694.05 and 946.73

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Solution

The fourth proportional to 1,227.12, 1,694.05 and 946.73 is: 1,306.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.12 : 1,694.05 = 946.73 : x
  2. Step 2: Convert to fraction form
    1,227.12/1,694.05 = 946.73/x
  3. Step 3: Cross multiply
    1,227.12x = 1,694.05 × 946.73
  4. Step 4: Simplify right side
    1,227.12x = 1,603,799.49
  5. Step 5: Solve for x
    x = 1,603,799.49/1,227.12
  6. Step 6: Final answer
    x = 1,306.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.