Home / 2,161.06-2,982.33-1,229.62

Finding the Fourth Proportional to 2,161.06, 2,982.33 and 1,229.62

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Solution

The fourth proportional to 2,161.06, 2,982.33 and 1,229.62 is: 1,696.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.06 : 2,982.33 = 1,229.62 : x
  2. Step 2: Convert to fraction form
    2,161.06/2,982.33 = 1,229.62/x
  3. Step 3: Cross multiply
    2,161.06x = 2,982.33 × 1,229.62
  4. Step 4: Simplify right side
    2,161.06x = 3,667,132.61
  5. Step 5: Solve for x
    x = 3,667,132.61/2,161.06
  6. Step 6: Final answer
    x = 1,696.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.