Home / 5,517.68-8,276.31-1,819.80

Finding the Fourth Proportional to 5,517.68, 8,276.31 and 1,819.80

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Solution

The fourth proportional to 5,517.68, 8,276.31 and 1,819.80 is: 2,729.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.68 : 8,276.31 = 1,819.80 : x
  2. Step 2: Convert to fraction form
    5,517.68/8,276.31 = 1,819.80/x
  3. Step 3: Cross multiply
    5,517.68x = 8,276.31 × 1,819.80
  4. Step 4: Simplify right side
    5,517.68x = 15,061,228.94
  5. Step 5: Solve for x
    x = 15,061,228.94/5,517.68
  6. Step 6: Final answer
    x = 2,729.63

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1.5x scale

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.