Home / 2,819.02-3,891.62-1,876.39

Finding the Fourth Proportional to 2,819.02, 3,891.62 and 1,876.39

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Solution

The fourth proportional to 2,819.02, 3,891.62 and 1,876.39 is: 2,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.02 : 3,891.62 = 1,876.39 : x
  2. Step 2: Convert to fraction form
    2,819.02/3,891.62 = 1,876.39/x
  3. Step 3: Cross multiply
    2,819.02x = 3,891.62 × 1,876.39
  4. Step 4: Simplify right side
    2,819.02x = 7,302,196.85
  5. Step 5: Solve for x
    x = 7,302,196.85/2,819.02
  6. Step 6: Final answer
    x = 2,590.33

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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.