Home / 2,132.10-3,198.15-961.65

Finding the Fourth Proportional to 2,132.10, 3,198.15 and 961.65

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Solution

The fourth proportional to 2,132.10, 3,198.15 and 961.65 is: 1,442.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.10 : 3,198.15 = 961.65 : x
  2. Step 2: Convert to fraction form
    2,132.10/3,198.15 = 961.65/x
  3. Step 3: Cross multiply
    2,132.10x = 3,198.15 × 961.65
  4. Step 4: Simplify right side
    2,132.10x = 3,075,500.95
  5. Step 5: Solve for x
    x = 3,075,500.95/2,132.10
  6. Step 6: Final answer
    x = 1,442.48

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Similar ratio
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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.