Home / 5,249.79-7,244.54-2,891.97

Finding the Fourth Proportional to 5,249.79, 7,244.54 and 2,891.97

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Solution

The fourth proportional to 5,249.79, 7,244.54 and 2,891.97 is: 3,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.79 : 7,244.54 = 2,891.97 : x
  2. Step 2: Convert to fraction form
    5,249.79/7,244.54 = 2,891.97/x
  3. Step 3: Cross multiply
    5,249.79x = 7,244.54 × 2,891.97
  4. Step 4: Simplify right side
    5,249.79x = 20,950,977.88
  5. Step 5: Solve for x
    x = 20,950,977.88/5,249.79
  6. Step 6: Final answer
    x = 3,990.82

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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.