Home / 1,267.28-1,755.98-1,251.44

Finding the Fourth Proportional to 1,267.28, 1,755.98 and 1,251.44

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Solution

The fourth proportional to 1,267.28, 1,755.98 and 1,251.44 is: 1,734.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.28 : 1,755.98 = 1,251.44 : x
  2. Step 2: Convert to fraction form
    1,267.28/1,755.98 = 1,251.44/x
  3. Step 3: Cross multiply
    1,267.28x = 1,755.98 × 1,251.44
  4. Step 4: Simplify right side
    1,267.28x = 2,197,503.61
  5. Step 5: Solve for x
    x = 2,197,503.61/1,267.28
  6. Step 6: Final answer
    x = 1,734.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.