Home / 5,249.22-7,243.71-2,891.34

Finding the Fourth Proportional to 5,249.22, 7,243.71 and 2,891.34

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Solution

The fourth proportional to 5,249.22, 7,243.71 and 2,891.34 is: 3,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.22 : 7,243.71 = 2,891.34 : x
  2. Step 2: Convert to fraction form
    5,249.22/7,243.71 = 2,891.34/x
  3. Step 3: Cross multiply
    5,249.22x = 7,243.71 × 2,891.34
  4. Step 4: Simplify right side
    5,249.22x = 20,944,028.47
  5. Step 5: Solve for x
    x = 20,944,028.47/5,249.22
  6. Step 6: Final answer
    x = 3,989.93

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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.