Home / 2,132.16-3,198.32-745.57

Finding the Fourth Proportional to 2,132.16, 3,198.32 and 745.57

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Solution

The fourth proportional to 2,132.16, 3,198.32 and 745.57 is: 1,118.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.16 : 3,198.32 = 745.57 : x
  2. Step 2: Convert to fraction form
    2,132.16/3,198.32 = 745.57/x
  3. Step 3: Cross multiply
    2,132.16x = 3,198.32 × 745.57
  4. Step 4: Simplify right side
    2,132.16x = 2,384,571.44
  5. Step 5: Solve for x
    x = 2,384,571.44/2,132.16
  6. Step 6: Final answer
    x = 1,118.38

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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.