Home / 2,274.26-3,138.48-1,279.54

Finding the Fourth Proportional to 2,274.26, 3,138.48 and 1,279.54

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Solution

The fourth proportional to 2,274.26, 3,138.48 and 1,279.54 is: 1,765.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.26 : 3,138.48 = 1,279.54 : x
  2. Step 2: Convert to fraction form
    2,274.26/3,138.48 = 1,279.54/x
  3. Step 3: Cross multiply
    2,274.26x = 3,138.48 × 1,279.54
  4. Step 4: Simplify right side
    2,274.26x = 4,015,810.70
  5. Step 5: Solve for x
    x = 4,015,810.70/2,274.26
  6. Step 6: Final answer
    x = 1,765.77

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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.