Home / 1,977.14-2,728.24-1,092.71

Finding the Fourth Proportional to 1,977.14, 2,728.24 and 1,092.71

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Solution

The fourth proportional to 1,977.14, 2,728.24 and 1,092.71 is: 1,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.14 : 2,728.24 = 1,092.71 : x
  2. Step 2: Convert to fraction form
    1,977.14/2,728.24 = 1,092.71/x
  3. Step 3: Cross multiply
    1,977.14x = 2,728.24 × 1,092.71
  4. Step 4: Simplify right side
    1,977.14x = 2,981,179.22
  5. Step 5: Solve for x
    x = 2,981,179.22/1,977.14
  6. Step 6: Final answer
    x = 1,507.82

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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.