Home / 1,890.92-2,836.92-1,371.44

Finding the Fourth Proportional to 1,890.92, 2,836.92 and 1,371.44

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Solution

The fourth proportional to 1,890.92, 2,836.92 and 1,371.44 is: 2,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.92 : 2,836.92 = 1,371.44 : x
  2. Step 2: Convert to fraction form
    1,890.92/2,836.92 = 1,371.44/x
  3. Step 3: Cross multiply
    1,890.92x = 2,836.92 × 1,371.44
  4. Step 4: Simplify right side
    1,890.92x = 3,890,665.56
  5. Step 5: Solve for x
    x = 3,890,665.56/1,890.92
  6. Step 6: Final answer
    x = 2,057.55

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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.