Home / 2,819.08-3,891.68-1,876.44

Finding the Fourth Proportional to 2,819.08, 3,891.68 and 1,876.44

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Solution

The fourth proportional to 2,819.08, 3,891.68 and 1,876.44 is: 2,590.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.08 : 3,891.68 = 1,876.44 : x
  2. Step 2: Convert to fraction form
    2,819.08/3,891.68 = 1,876.44/x
  3. Step 3: Cross multiply
    2,819.08x = 3,891.68 × 1,876.44
  4. Step 4: Simplify right side
    2,819.08x = 7,302,504.02
  5. Step 5: Solve for x
    x = 7,302,504.02/2,819.08
  6. Step 6: Final answer
    x = 2,590.39

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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.