Home / 2,132.17-3,198.26-745.14

Finding the Fourth Proportional to 2,132.17, 3,198.26 and 745.14

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Solution

The fourth proportional to 2,132.17, 3,198.26 and 745.14 is: 1,117.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.17 : 3,198.26 = 745.14 : x
  2. Step 2: Convert to fraction form
    2,132.17/3,198.26 = 745.14/x
  3. Step 3: Cross multiply
    2,132.17x = 3,198.26 × 745.14
  4. Step 4: Simplify right side
    2,132.17x = 2,383,151.46
  5. Step 5: Solve for x
    x = 2,383,151.46/2,132.17
  6. Step 6: Final answer
    x = 1,117.71

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1.5x scale

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.