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Finding the Fourth Proportional to 6,652.80, 9,975.60 and 2,757.60

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Solution

The fourth proportional to 6,652.80, 9,975.60 and 2,757.60 is: 4,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652.80 : 9,975.60 = 2,757.60 : x
  2. Step 2: Convert to fraction form
    6,652.80/9,975.60 = 2,757.60/x
  3. Step 3: Cross multiply
    6,652.80x = 9,975.60 × 2,757.60
  4. Step 4: Simplify right side
    6,652.80x = 27,508,714.56
  5. Step 5: Solve for x
    x = 27,508,714.56/6,652.80
  6. Step 6: Final answer
    x = 4,134.91

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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.