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Finding the Fourth Proportional to 6,648.80, 9,969.60 and 2,753.60

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Solution

The fourth proportional to 6,648.80, 9,969.60 and 2,753.60 is: 4,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.80 : 9,969.60 = 2,753.60 : x
  2. Step 2: Convert to fraction form
    6,648.80/9,969.60 = 2,753.60/x
  3. Step 3: Cross multiply
    6,648.80x = 9,969.60 × 2,753.60
  4. Step 4: Simplify right side
    6,648.80x = 27,452,290.56
  5. Step 5: Solve for x
    x = 27,452,290.56/6,648.80
  6. Step 6: Final answer
    x = 4,128.91

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1.5x scale

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.