Home / 3,278.16-4,920.48-2,108.52

Finding the Fourth Proportional to 3,278.16, 4,920.48 and 2,108.52

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Solution

The fourth proportional to 3,278.16, 4,920.48 and 2,108.52 is: 3,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.16 : 4,920.48 = 2,108.52 : x
  2. Step 2: Convert to fraction form
    3,278.16/4,920.48 = 2,108.52/x
  3. Step 3: Cross multiply
    3,278.16x = 4,920.48 × 2,108.52
  4. Step 4: Simplify right side
    3,278.16x = 10,374,930.49
  5. Step 5: Solve for x
    x = 10,374,930.49/3,278.16
  6. Step 6: Final answer
    x = 3,164.86

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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.