Home / 1,972.38-2,721.83-1,076.14

Finding the Fourth Proportional to 1,972.38, 2,721.83 and 1,076.14

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Solution

The fourth proportional to 1,972.38, 2,721.83 and 1,076.14 is: 1,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.38 : 2,721.83 = 1,076.14 : x
  2. Step 2: Convert to fraction form
    1,972.38/2,721.83 = 1,076.14/x
  3. Step 3: Cross multiply
    1,972.38x = 2,721.83 × 1,076.14
  4. Step 4: Simplify right side
    1,972.38x = 2,929,067.45
  5. Step 5: Solve for x
    x = 2,929,067.45/1,972.38
  6. Step 6: Final answer
    x = 1,485.04

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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.