Home / 2,919.60-4,380.42-1,822.68

Finding the Fourth Proportional to 2,919.60, 4,380.42 and 1,822.68

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Solution

The fourth proportional to 2,919.60, 4,380.42 and 1,822.68 is: 2,734.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.60 : 4,380.42 = 1,822.68 : x
  2. Step 2: Convert to fraction form
    2,919.60/4,380.42 = 1,822.68/x
  3. Step 3: Cross multiply
    2,919.60x = 4,380.42 × 1,822.68
  4. Step 4: Simplify right side
    2,919.60x = 7,984,103.93
  5. Step 5: Solve for x
    x = 7,984,103.93/2,919.60
  6. Step 6: Final answer
    x = 2,734.66

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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.