Home / 5,249.33-7,243.81-2,891.42

Finding the Fourth Proportional to 5,249.33, 7,243.81 and 2,891.42

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Solution

The fourth proportional to 5,249.33, 7,243.81 and 2,891.42 is: 3,990.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.33 : 7,243.81 = 2,891.42 : x
  2. Step 2: Convert to fraction form
    5,249.33/7,243.81 = 2,891.42/x
  3. Step 3: Cross multiply
    5,249.33x = 7,243.81 × 2,891.42
  4. Step 4: Simplify right side
    5,249.33x = 20,944,897.11
  5. Step 5: Solve for x
    x = 20,944,897.11/5,249.33
  6. Step 6: Final answer
    x = 3,990.01

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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.