Home / 3,972.80-5,956.87-1,198.64

Finding the Fourth Proportional to 3,972.80, 5,956.87 and 1,198.64

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Solution

The fourth proportional to 3,972.80, 5,956.87 and 1,198.64 is: 1,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.80 : 5,956.87 = 1,198.64 : x
  2. Step 2: Convert to fraction form
    3,972.80/5,956.87 = 1,198.64/x
  3. Step 3: Cross multiply
    3,972.80x = 5,956.87 × 1,198.64
  4. Step 4: Simplify right side
    3,972.80x = 7,140,112.87
  5. Step 5: Solve for x
    x = 7,140,112.87/3,972.80
  6. Step 6: Final answer
    x = 1,797.25

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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.