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Finding the Fourth Proportional to 6,624.80, 9,933.60 and 2,729.60

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Solution

The fourth proportional to 6,624.80, 9,933.60 and 2,729.60 is: 4,092.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.80 : 9,933.60 = 2,729.60 : x
  2. Step 2: Convert to fraction form
    6,624.80/9,933.60 = 2,729.60/x
  3. Step 3: Cross multiply
    6,624.80x = 9,933.60 × 2,729.60
  4. Step 4: Simplify right side
    6,624.80x = 27,114,754.56
  5. Step 5: Solve for x
    x = 27,114,754.56/6,624.80
  6. Step 6: Final answer
    x = 4,092.92

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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.