Home / 3,972.16-5,958.96-1,198.72

Finding the Fourth Proportional to 3,972.16, 5,958.96 and 1,198.72

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Solution

The fourth proportional to 3,972.16, 5,958.96 and 1,198.72 is: 1,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.16 : 5,958.96 = 1,198.72 : x
  2. Step 2: Convert to fraction form
    3,972.16/5,958.96 = 1,198.72/x
  3. Step 3: Cross multiply
    3,972.16x = 5,958.96 × 1,198.72
  4. Step 4: Simplify right side
    3,972.16x = 7,143,124.53
  5. Step 5: Solve for x
    x = 7,143,124.53/3,972.16
  6. Step 6: Final answer
    x = 1,798.30

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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.