Home / 2,819.56-4,229.34-1,664.68

Finding the Fourth Proportional to 2,819.56, 4,229.34 and 1,664.68

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Solution

The fourth proportional to 2,819.56, 4,229.34 and 1,664.68 is: 2,497.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.56 : 4,229.34 = 1,664.68 : x
  2. Step 2: Convert to fraction form
    2,819.56/4,229.34 = 1,664.68/x
  3. Step 3: Cross multiply
    2,819.56x = 4,229.34 × 1,664.68
  4. Step 4: Simplify right side
    2,819.56x = 7,040,497.71
  5. Step 5: Solve for x
    x = 7,040,497.71/2,819.56
  6. Step 6: Final answer
    x = 2,497.02

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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.