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Finding the Fourth Proportional to 2,747.26, 4,120.99 and 799.61

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Solution

The fourth proportional to 2,747.26, 4,120.99 and 799.61 is: 1,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.26 : 4,120.99 = 799.61 : x
  2. Step 2: Convert to fraction form
    2,747.26/4,120.99 = 799.61/x
  3. Step 3: Cross multiply
    2,747.26x = 4,120.99 × 799.61
  4. Step 4: Simplify right side
    2,747.26x = 3,295,193.12
  5. Step 5: Solve for x
    x = 3,295,193.12/2,747.26
  6. Step 6: Final answer
    x = 1,199.45

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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.