Home / 2,936.28-4,398.66-1,288.92

Finding the Fourth Proportional to 2,936.28, 4,398.66 and 1,288.92

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Solution

The fourth proportional to 2,936.28, 4,398.66 and 1,288.92 is: 1,930.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.28 : 4,398.66 = 1,288.92 : x
  2. Step 2: Convert to fraction form
    2,936.28/4,398.66 = 1,288.92/x
  3. Step 3: Cross multiply
    2,936.28x = 4,398.66 × 1,288.92
  4. Step 4: Simplify right side
    2,936.28x = 5,669,520.85
  5. Step 5: Solve for x
    x = 5,669,520.85/2,936.28
  6. Step 6: Final answer
    x = 1,930.85

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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.