Home / 3,278.88-4,920.75-1,819.26

Finding the Fourth Proportional to 3,278.88, 4,920.75 and 1,819.26

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Solution

The fourth proportional to 3,278.88, 4,920.75 and 1,819.26 is: 2,730.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.88 : 4,920.75 = 1,819.26 : x
  2. Step 2: Convert to fraction form
    3,278.88/4,920.75 = 1,819.26/x
  3. Step 3: Cross multiply
    3,278.88x = 4,920.75 × 1,819.26
  4. Step 4: Simplify right side
    3,278.88x = 8,952,123.65
  5. Step 5: Solve for x
    x = 8,952,123.65/3,278.88
  6. Step 6: Final answer
    x = 2,730.24

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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.