Home / 2,132.30-3,198.24-745.38

Finding the Fourth Proportional to 2,132.30, 3,198.24 and 745.38

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Solution

The fourth proportional to 2,132.30, 3,198.24 and 745.38 is: 1,118.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.30 : 3,198.24 = 745.38 : x
  2. Step 2: Convert to fraction form
    2,132.30/3,198.24 = 745.38/x
  3. Step 3: Cross multiply
    2,132.30x = 3,198.24 × 745.38
  4. Step 4: Simplify right side
    2,132.30x = 2,383,904.13
  5. Step 5: Solve for x
    x = 2,383,904.13/2,132.30
  6. Step 6: Final answer
    x = 1,118.00

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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.