Home / 2,261.92-3,121.62-1,267.24

Finding the Fourth Proportional to 2,261.92, 3,121.62 and 1,267.24

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Solution

The fourth proportional to 2,261.92, 3,121.62 and 1,267.24 is: 1,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.92 : 3,121.62 = 1,267.24 : x
  2. Step 2: Convert to fraction form
    2,261.92/3,121.62 = 1,267.24/x
  3. Step 3: Cross multiply
    2,261.92x = 3,121.62 × 1,267.24
  4. Step 4: Simplify right side
    2,261.92x = 3,955,841.73
  5. Step 5: Solve for x
    x = 3,955,841.73/2,261.92
  6. Step 6: Final answer
    x = 1,748.89

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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.