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Finding the Fourth Proportional to 6,600.80, 9,896.40 and 2,703.20

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Solution

The fourth proportional to 6,600.80, 9,896.40 and 2,703.20 is: 4,052.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.80 : 9,896.40 = 2,703.20 : x
  2. Step 2: Convert to fraction form
    6,600.80/9,896.40 = 2,703.20/x
  3. Step 3: Cross multiply
    6,600.80x = 9,896.40 × 2,703.20
  4. Step 4: Simplify right side
    6,600.80x = 26,751,948.48
  5. Step 5: Solve for x
    x = 26,751,948.48/6,600.80
  6. Step 6: Final answer
    x = 4,052.83

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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.