Home / 2,772.41-4,159.68-1,982.66

Finding the Fourth Proportional to 2,772.41, 4,159.68 and 1,982.66

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Solution

The fourth proportional to 2,772.41, 4,159.68 and 1,982.66 is: 2,974.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.41 : 4,159.68 = 1,982.66 : x
  2. Step 2: Convert to fraction form
    2,772.41/4,159.68 = 1,982.66/x
  3. Step 3: Cross multiply
    2,772.41x = 4,159.68 × 1,982.66
  4. Step 4: Simplify right side
    2,772.41x = 8,247,241.55
  5. Step 5: Solve for x
    x = 8,247,241.55/2,772.41
  6. Step 6: Final answer
    x = 2,974.75

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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.