Home / 1,939.97-2,677.08-1,055.77

Finding the Fourth Proportional to 1,939.97, 2,677.08 and 1,055.77

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Solution

The fourth proportional to 1,939.97, 2,677.08 and 1,055.77 is: 1,456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.97 : 2,677.08 = 1,055.77 : x
  2. Step 2: Convert to fraction form
    1,939.97/2,677.08 = 1,055.77/x
  3. Step 3: Cross multiply
    1,939.97x = 2,677.08 × 1,055.77
  4. Step 4: Simplify right side
    1,939.97x = 2,826,382.17
  5. Step 5: Solve for x
    x = 2,826,382.17/1,939.97
  6. Step 6: Final answer
    x = 1,456.92

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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.