Home / 2,819.34-4,227.51-1,431.81

Finding the Fourth Proportional to 2,819.34, 4,227.51 and 1,431.81

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Solution

The fourth proportional to 2,819.34, 4,227.51 and 1,431.81 is: 2,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.34 : 4,227.51 = 1,431.81 : x
  2. Step 2: Convert to fraction form
    2,819.34/4,227.51 = 1,431.81/x
  3. Step 3: Cross multiply
    2,819.34x = 4,227.51 × 1,431.81
  4. Step 4: Simplify right side
    2,819.34x = 6,052,991.09
  5. Step 5: Solve for x
    x = 6,052,991.09/2,819.34
  6. Step 6: Final answer
    x = 2,146.95

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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.