Home / 2,086.97-2,879.68-1,248.02

Finding the Fourth Proportional to 2,086.97, 2,879.68 and 1,248.02

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Solution

The fourth proportional to 2,086.97, 2,879.68 and 1,248.02 is: 1,722.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.97 : 2,879.68 = 1,248.02 : x
  2. Step 2: Convert to fraction form
    2,086.97/2,879.68 = 1,248.02/x
  3. Step 3: Cross multiply
    2,086.97x = 2,879.68 × 1,248.02
  4. Step 4: Simplify right side
    2,086.97x = 3,593,898.23
  5. Step 5: Solve for x
    x = 3,593,898.23/2,086.97
  6. Step 6: Final answer
    x = 1,722.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.