Home / 2,512.08-3,767.76-1,213.20

Finding the Fourth Proportional to 2,512.08, 3,767.76 and 1,213.20

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Solution

The fourth proportional to 2,512.08, 3,767.76 and 1,213.20 is: 1,819.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.08 : 3,767.76 = 1,213.20 : x
  2. Step 2: Convert to fraction form
    2,512.08/3,767.76 = 1,213.20/x
  3. Step 3: Cross multiply
    2,512.08x = 3,767.76 × 1,213.20
  4. Step 4: Simplify right side
    2,512.08x = 4,571,046.43
  5. Step 5: Solve for x
    x = 4,571,046.43/2,512.08
  6. Step 6: Final answer
    x = 1,819.63

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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.