Home / 1,939.92-2,911.68-1,073.04

Finding the Fourth Proportional to 1,939.92, 2,911.68 and 1,073.04

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Solution

The fourth proportional to 1,939.92, 2,911.68 and 1,073.04 is: 1,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.92 : 2,911.68 = 1,073.04 : x
  2. Step 2: Convert to fraction form
    1,939.92/2,911.68 = 1,073.04/x
  3. Step 3: Cross multiply
    1,939.92x = 2,911.68 × 1,073.04
  4. Step 4: Simplify right side
    1,939.92x = 3,124,349.11
  5. Step 5: Solve for x
    x = 3,124,349.11/1,939.92
  6. Step 6: Final answer
    x = 1,610.56

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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.