Home / 1,958.82-2,939.38-727.09

Finding the Fourth Proportional to 1,958.82, 2,939.38 and 727.09

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Solution

The fourth proportional to 1,958.82, 2,939.38 and 727.09 is: 1,091.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.82 : 2,939.38 = 727.09 : x
  2. Step 2: Convert to fraction form
    1,958.82/2,939.38 = 727.09/x
  3. Step 3: Cross multiply
    1,958.82x = 2,939.38 × 727.09
  4. Step 4: Simplify right side
    1,958.82x = 2,137,193.80
  5. Step 5: Solve for x
    x = 2,137,193.80/1,958.82
  6. Step 6: Final answer
    x = 1,091.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.