Home / 3,278.88-4,905.99-1,819.08

Finding the Fourth Proportional to 3,278.88, 4,905.99 and 1,819.08

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Solution

The fourth proportional to 3,278.88, 4,905.99 and 1,819.08 is: 2,721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.88 : 4,905.99 = 1,819.08 : x
  2. Step 2: Convert to fraction form
    3,278.88/4,905.99 = 1,819.08/x
  3. Step 3: Cross multiply
    3,278.88x = 4,905.99 × 1,819.08
  4. Step 4: Simplify right side
    3,278.88x = 8,924,388.29
  5. Step 5: Solve for x
    x = 8,924,388.29/3,278.88
  6. Step 6: Final answer
    x = 2,721.78

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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.