Home / 1,939.59-2,677.23-1,240.97

Finding the Fourth Proportional to 1,939.59, 2,677.23 and 1,240.97

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Solution

The fourth proportional to 1,939.59, 2,677.23 and 1,240.97 is: 1,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.59 : 2,677.23 = 1,240.97 : x
  2. Step 2: Convert to fraction form
    1,939.59/2,677.23 = 1,240.97/x
  3. Step 3: Cross multiply
    1,939.59x = 2,677.23 × 1,240.97
  4. Step 4: Simplify right side
    1,939.59x = 3,322,348.73
  5. Step 5: Solve for x
    x = 3,322,348.73/1,939.59
  6. Step 6: Final answer
    x = 1,712.91

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1.5x scale

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.