Home / 1,939.43-2,676.37-1,055.25

Finding the Fourth Proportional to 1,939.43, 2,676.37 and 1,055.25

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Solution

The fourth proportional to 1,939.43, 2,676.37 and 1,055.25 is: 1,456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.43 : 2,676.37 = 1,055.25 : x
  2. Step 2: Convert to fraction form
    1,939.43/2,676.37 = 1,055.25/x
  3. Step 3: Cross multiply
    1,939.43x = 2,676.37 × 1,055.25
  4. Step 4: Simplify right side
    1,939.43x = 2,824,236.80
  5. Step 5: Solve for x
    x = 2,824,236.80/1,939.43
  6. Step 6: Final answer
    x = 1,456.22

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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.