Home / 2,512.22-3,769.36-1,105.90

Finding the Fourth Proportional to 2,512.22, 3,769.36 and 1,105.90

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Solution

The fourth proportional to 2,512.22, 3,769.36 and 1,105.90 is: 1,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.22 : 3,769.36 = 1,105.90 : x
  2. Step 2: Convert to fraction form
    2,512.22/3,769.36 = 1,105.90/x
  3. Step 3: Cross multiply
    2,512.22x = 3,769.36 × 1,105.90
  4. Step 4: Simplify right side
    2,512.22x = 4,168,535.22
  5. Step 5: Solve for x
    x = 4,168,535.22/2,512.22
  6. Step 6: Final answer
    x = 1,659.30

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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.