Home / 2,819.57-4,230.36-1,259.43

Finding the Fourth Proportional to 2,819.57, 4,230.36 and 1,259.43

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Solution

The fourth proportional to 2,819.57, 4,230.36 and 1,259.43 is: 1,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.57 : 4,230.36 = 1,259.43 : x
  2. Step 2: Convert to fraction form
    2,819.57/4,230.36 = 1,259.43/x
  3. Step 3: Cross multiply
    2,819.57x = 4,230.36 × 1,259.43
  4. Step 4: Simplify right side
    2,819.57x = 5,327,836.00
  5. Step 5: Solve for x
    x = 5,327,836.00/2,819.57
  6. Step 6: Final answer
    x = 1,889.59

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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.