Home / 2,660.35-3,989.13-1,198.24

Finding the Fourth Proportional to 2,660.35, 3,989.13 and 1,198.24

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Solution

The fourth proportional to 2,660.35, 3,989.13 and 1,198.24 is: 1,796.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.35 : 3,989.13 = 1,198.24 : x
  2. Step 2: Convert to fraction form
    2,660.35/3,989.13 = 1,198.24/x
  3. Step 3: Cross multiply
    2,660.35x = 3,989.13 × 1,198.24
  4. Step 4: Simplify right side
    2,660.35x = 4,779,935.13
  5. Step 5: Solve for x
    x = 4,779,935.13/2,660.35
  6. Step 6: Final answer
    x = 1,796.73

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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.