Home / 2,819.96-3,891.35-1,560.92

Finding the Fourth Proportional to 2,819.96, 3,891.35 and 1,560.92

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Solution

The fourth proportional to 2,819.96, 3,891.35 and 1,560.92 is: 2,153.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.96 : 3,891.35 = 1,560.92 : x
  2. Step 2: Convert to fraction form
    2,819.96/3,891.35 = 1,560.92/x
  3. Step 3: Cross multiply
    2,819.96x = 3,891.35 × 1,560.92
  4. Step 4: Simplify right side
    2,819.96x = 6,074,099.67
  5. Step 5: Solve for x
    x = 6,074,099.67/2,819.96
  6. Step 6: Final answer
    x = 2,153.97

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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.