Home / 2,036.94-2,811.27-1,290.97

Finding the Fourth Proportional to 2,036.94, 2,811.27 and 1,290.97

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Solution

The fourth proportional to 2,036.94, 2,811.27 and 1,290.97 is: 1,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,036.94 : 2,811.27 = 1,290.97 : x
  2. Step 2: Convert to fraction form
    2,036.94/2,811.27 = 1,290.97/x
  3. Step 3: Cross multiply
    2,036.94x = 2,811.27 × 1,290.97
  4. Step 4: Simplify right side
    2,036.94x = 3,629,251.18
  5. Step 5: Solve for x
    x = 3,629,251.18/2,036.94
  6. Step 6: Final answer
    x = 1,781.72

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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.