Home / 8,160.80-12,241.20-2,966

Finding the Fourth Proportional to 8,160.80, 12,241.20 and 2,966

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Solution

The fourth proportional to 8,160.80, 12,241.20 and 2,966 is: 4,449

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.80 : 12,241.20 = 2,966 : x
  2. Step 2: Convert to fraction form
    8,160.80/12,241.20 = 2,966/x
  3. Step 3: Cross multiply
    8,160.80x = 12,241.20 × 2,966
  4. Step 4: Simplify right side
    8,160.80x = 36,307,399.20
  5. Step 5: Solve for x
    x = 36,307,399.20/8,160.80
  6. Step 6: Final answer
    x = 4,449

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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.