Home / 2,132.30-3,198.60-1,208.30

Finding the Fourth Proportional to 2,132.30, 3,198.60 and 1,208.30

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Solution

The fourth proportional to 2,132.30, 3,198.60 and 1,208.30 is: 1,812.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.30 : 3,198.60 = 1,208.30 : x
  2. Step 2: Convert to fraction form
    2,132.30/3,198.60 = 1,208.30/x
  3. Step 3: Cross multiply
    2,132.30x = 3,198.60 × 1,208.30
  4. Step 4: Simplify right side
    2,132.30x = 3,864,868.38
  5. Step 5: Solve for x
    x = 3,864,868.38/2,132.30
  6. Step 6: Final answer
    x = 1,812.53

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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.