Home / 3,799.58-5,243.45-2,120.97

Finding the Fourth Proportional to 3,799.58, 5,243.45 and 2,120.97

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Solution

The fourth proportional to 3,799.58, 5,243.45 and 2,120.97 is: 2,926.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,799.58 : 5,243.45 = 2,120.97 : x
  2. Step 2: Convert to fraction form
    3,799.58/5,243.45 = 2,120.97/x
  3. Step 3: Cross multiply
    3,799.58x = 5,243.45 × 2,120.97
  4. Step 4: Simplify right side
    3,799.58x = 11,121,189.54
  5. Step 5: Solve for x
    x = 11,121,189.54/3,799.58
  6. Step 6: Final answer
    x = 2,926.96

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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.