Home / 2,221.97-3,306.72-2,148.14

Finding the Fourth Proportional to 2,221.97, 3,306.72 and 2,148.14

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Solution

The fourth proportional to 2,221.97, 3,306.72 and 2,148.14 is: 3,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.97 : 3,306.72 = 2,148.14 : x
  2. Step 2: Convert to fraction form
    2,221.97/3,306.72 = 2,148.14/x
  3. Step 3: Cross multiply
    2,221.97x = 3,306.72 × 2,148.14
  4. Step 4: Simplify right side
    2,221.97x = 7,103,280.97
  5. Step 5: Solve for x
    x = 7,103,280.97/2,221.97
  6. Step 6: Final answer
    x = 3,196.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.