Home / 2,819.95-3,891.24-1,560.83

Finding the Fourth Proportional to 2,819.95, 3,891.24 and 1,560.83

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Solution

The fourth proportional to 2,819.95, 3,891.24 and 1,560.83 is: 2,153.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.95 : 3,891.24 = 1,560.83 : x
  2. Step 2: Convert to fraction form
    2,819.95/3,891.24 = 1,560.83/x
  3. Step 3: Cross multiply
    2,819.95x = 3,891.24 × 1,560.83
  4. Step 4: Simplify right side
    2,819.95x = 6,073,572.03
  5. Step 5: Solve for x
    x = 6,073,572.03/2,819.95
  6. Step 6: Final answer
    x = 2,153.79

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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.