Home / 1,916.11-2,874.27-819.73

Finding the Fourth Proportional to 1,916.11, 2,874.27 and 819.73

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Solution

The fourth proportional to 1,916.11, 2,874.27 and 819.73 is: 1,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.11 : 2,874.27 = 819.73 : x
  2. Step 2: Convert to fraction form
    1,916.11/2,874.27 = 819.73/x
  3. Step 3: Cross multiply
    1,916.11x = 2,874.27 × 819.73
  4. Step 4: Simplify right side
    1,916.11x = 2,356,125.35
  5. Step 5: Solve for x
    x = 2,356,125.35/1,916.11
  6. Step 6: Final answer
    x = 1,229.64

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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.