Home / 2,255.19-3,380.49-1,279.23

Finding the Fourth Proportional to 2,255.19, 3,380.49 and 1,279.23

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Solution

The fourth proportional to 2,255.19, 3,380.49 and 1,279.23 is: 1,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.19 : 3,380.49 = 1,279.23 : x
  2. Step 2: Convert to fraction form
    2,255.19/3,380.49 = 1,279.23/x
  3. Step 3: Cross multiply
    2,255.19x = 3,380.49 × 1,279.23
  4. Step 4: Simplify right side
    2,255.19x = 4,324,424.22
  5. Step 5: Solve for x
    x = 4,324,424.22/2,255.19
  6. Step 6: Final answer
    x = 1,917.54

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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.