Home / 1,976.13-2,726.78-1,136.97

Finding the Fourth Proportional to 1,976.13, 2,726.78 and 1,136.97

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Solution

The fourth proportional to 1,976.13, 2,726.78 and 1,136.97 is: 1,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.13 : 2,726.78 = 1,136.97 : x
  2. Step 2: Convert to fraction form
    1,976.13/2,726.78 = 1,136.97/x
  3. Step 3: Cross multiply
    1,976.13x = 2,726.78 × 1,136.97
  4. Step 4: Simplify right side
    1,976.13x = 3,100,261.37
  5. Step 5: Solve for x
    x = 3,100,261.37/1,976.13
  6. Step 6: Final answer
    x = 1,568.85

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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.