Home / 2,766.96-3,819.78-2,168.44

Finding the Fourth Proportional to 2,766.96, 3,819.78 and 2,168.44

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Solution

The fourth proportional to 2,766.96, 3,819.78 and 2,168.44 is: 2,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.96 : 3,819.78 = 2,168.44 : x
  2. Step 2: Convert to fraction form
    2,766.96/3,819.78 = 2,168.44/x
  3. Step 3: Cross multiply
    2,766.96x = 3,819.78 × 2,168.44
  4. Step 4: Simplify right side
    2,766.96x = 8,282,954.19
  5. Step 5: Solve for x
    x = 8,282,954.19/2,766.96
  6. Step 6: Final answer
    x = 2,993.52

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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.