Home / 2,819.76-4,224.65-1,896.09

Finding the Fourth Proportional to 2,819.76, 4,224.65 and 1,896.09

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Solution

The fourth proportional to 2,819.76, 4,224.65 and 1,896.09 is: 2,840.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.76 : 4,224.65 = 1,896.09 : x
  2. Step 2: Convert to fraction form
    2,819.76/4,224.65 = 1,896.09/x
  3. Step 3: Cross multiply
    2,819.76x = 4,224.65 × 1,896.09
  4. Step 4: Simplify right side
    2,819.76x = 8,010,307.14
  5. Step 5: Solve for x
    x = 8,010,307.14/2,819.76
  6. Step 6: Final answer
    x = 2,840.78

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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.