Home / 5,249.21-7,244.03-2,891.48

Finding the Fourth Proportional to 5,249.21, 7,244.03 and 2,891.48

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Solution

The fourth proportional to 5,249.21, 7,244.03 and 2,891.48 is: 3,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.21 : 7,244.03 = 2,891.48 : x
  2. Step 2: Convert to fraction form
    5,249.21/7,244.03 = 2,891.48/x
  3. Step 3: Cross multiply
    5,249.21x = 7,244.03 × 2,891.48
  4. Step 4: Simplify right side
    5,249.21x = 20,945,953.41
  5. Step 5: Solve for x
    x = 20,945,953.41/5,249.21
  6. Step 6: Final answer
    x = 3,990.31

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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.