Home / 1,939.50-2,676.44-1,055.29

Finding the Fourth Proportional to 1,939.50, 2,676.44 and 1,055.29

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Solution

The fourth proportional to 1,939.50, 2,676.44 and 1,055.29 is: 1,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.50 : 2,676.44 = 1,055.29 : x
  2. Step 2: Convert to fraction form
    1,939.50/2,676.44 = 1,055.29/x
  3. Step 3: Cross multiply
    1,939.50x = 2,676.44 × 1,055.29
  4. Step 4: Simplify right side
    1,939.50x = 2,824,416.31
  5. Step 5: Solve for x
    x = 2,824,416.31/1,939.50
  6. Step 6: Final answer
    x = 1,456.26

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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.