Home / 2,217.59-3,306.82-2,108.58

Finding the Fourth Proportional to 2,217.59, 3,306.82 and 2,108.58

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Solution

The fourth proportional to 2,217.59, 3,306.82 and 2,108.58 is: 3,144.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.59 : 3,306.82 = 2,108.58 : x
  2. Step 2: Convert to fraction form
    2,217.59/3,306.82 = 2,108.58/x
  3. Step 3: Cross multiply
    2,217.59x = 3,306.82 × 2,108.58
  4. Step 4: Simplify right side
    2,217.59x = 6,972,683.97
  5. Step 5: Solve for x
    x = 6,972,683.97/2,217.59
  6. Step 6: Final answer
    x = 3,144.27

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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.