Home / 5,517.92-8,278.10-1,819.99

Finding the Fourth Proportional to 5,517.92, 8,278.10 and 1,819.99

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Solution

The fourth proportional to 5,517.92, 8,278.10 and 1,819.99 is: 2,730.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.92 : 8,278.10 = 1,819.99 : x
  2. Step 2: Convert to fraction form
    5,517.92/8,278.10 = 1,819.99/x
  3. Step 3: Cross multiply
    5,517.92x = 8,278.10 × 1,819.99
  4. Step 4: Simplify right side
    5,517.92x = 15,066,090.57
  5. Step 5: Solve for x
    x = 15,066,090.57/5,517.92
  6. Step 6: Final answer
    x = 2,730.39

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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.