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Finding the Fourth Proportional to 6,650.80, 9,972.60 and 2,750.80

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Solution

The fourth proportional to 6,650.80, 9,972.60 and 2,750.80 is: 4,124.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.80 : 9,972.60 = 2,750.80 : x
  2. Step 2: Convert to fraction form
    6,650.80/9,972.60 = 2,750.80/x
  3. Step 3: Cross multiply
    6,650.80x = 9,972.60 × 2,750.80
  4. Step 4: Simplify right side
    6,650.80x = 27,432,628.08
  5. Step 5: Solve for x
    x = 27,432,628.08/6,650.80
  6. Step 6: Final answer
    x = 4,124.71

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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.