Home / 3,229.66-4,456.93-2,112.49

Finding the Fourth Proportional to 3,229.66, 4,456.93 and 2,112.49

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Solution

The fourth proportional to 3,229.66, 4,456.93 and 2,112.49 is: 2,915.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.66 : 4,456.93 = 2,112.49 : x
  2. Step 2: Convert to fraction form
    3,229.66/4,456.93 = 2,112.49/x
  3. Step 3: Cross multiply
    3,229.66x = 4,456.93 × 2,112.49
  4. Step 4: Simplify right side
    3,229.66x = 9,415,197.77
  5. Step 5: Solve for x
    x = 9,415,197.77/3,229.66
  6. Step 6: Final answer
    x = 2,915.23

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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.