Home / 1,975.71-2,726.46-1,091.55

Finding the Fourth Proportional to 1,975.71, 2,726.46 and 1,091.55

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Solution

The fourth proportional to 1,975.71, 2,726.46 and 1,091.55 is: 1,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.71 : 2,726.46 = 1,091.55 : x
  2. Step 2: Convert to fraction form
    1,975.71/2,726.46 = 1,091.55/x
  3. Step 3: Cross multiply
    1,975.71x = 2,726.46 × 1,091.55
  4. Step 4: Simplify right side
    1,975.71x = 2,976,067.41
  5. Step 5: Solve for x
    x = 2,976,067.41/1,975.71
  6. Step 6: Final answer
    x = 1,506.33

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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.