Home / 2,819.52-3,891.12-1,577.44

Finding the Fourth Proportional to 2,819.52, 3,891.12 and 1,577.44

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Solution

The fourth proportional to 2,819.52, 3,891.12 and 1,577.44 is: 2,176.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.52 : 3,891.12 = 1,577.44 : x
  2. Step 2: Convert to fraction form
    2,819.52/3,891.12 = 1,577.44/x
  3. Step 3: Cross multiply
    2,819.52x = 3,891.12 × 1,577.44
  4. Step 4: Simplify right side
    2,819.52x = 6,138,008.33
  5. Step 5: Solve for x
    x = 6,138,008.33/2,819.52
  6. Step 6: Final answer
    x = 2,176.97

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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.