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Finding the Fourth Proportional to 3,796.40, 5,695.12 and 1,199.68

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Solution

The fourth proportional to 3,796.40, 5,695.12 and 1,199.68 is: 1,799.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,796.40 : 5,695.12 = 1,199.68 : x
  2. Step 2: Convert to fraction form
    3,796.40/5,695.12 = 1,199.68/x
  3. Step 3: Cross multiply
    3,796.40x = 5,695.12 × 1,199.68
  4. Step 4: Simplify right side
    3,796.40x = 6,832,321.56
  5. Step 5: Solve for x
    x = 6,832,321.56/3,796.40
  6. Step 6: Final answer
    x = 1,799.68

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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.