Home / 1,976.38-2,726.92-1,137.32

Finding the Fourth Proportional to 1,976.38, 2,726.92 and 1,137.32

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Solution

The fourth proportional to 1,976.38, 2,726.92 and 1,137.32 is: 1,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.38 : 2,726.92 = 1,137.32 : x
  2. Step 2: Convert to fraction form
    1,976.38/2,726.92 = 1,137.32/x
  3. Step 3: Cross multiply
    1,976.38x = 2,726.92 × 1,137.32
  4. Step 4: Simplify right side
    1,976.38x = 3,101,387.61
  5. Step 5: Solve for x
    x = 3,101,387.61/1,976.38
  6. Step 6: Final answer
    x = 1,569.22

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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.