Home / 2,269.56-3,131.97-1,274.85

Finding the Fourth Proportional to 2,269.56, 3,131.97 and 1,274.85

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Solution

The fourth proportional to 2,269.56, 3,131.97 and 1,274.85 is: 1,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.56 : 3,131.97 = 1,274.85 : x
  2. Step 2: Convert to fraction form
    2,269.56/3,131.97 = 1,274.85/x
  3. Step 3: Cross multiply
    2,269.56x = 3,131.97 × 1,274.85
  4. Step 4: Simplify right side
    2,269.56x = 3,992,791.95
  5. Step 5: Solve for x
    x = 3,992,791.95/2,269.56
  6. Step 6: Final answer
    x = 1,759.28

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1.5x scale

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.