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Finding the Fourth Proportional to 5,249.88, 7,244.64 and 2,891.88

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Solution

The fourth proportional to 5,249.88, 7,244.64 and 2,891.88 is: 3,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.88 : 7,244.64 = 2,891.88 : x
  2. Step 2: Convert to fraction form
    5,249.88/7,244.64 = 2,891.88/x
  3. Step 3: Cross multiply
    5,249.88x = 7,244.64 × 2,891.88
  4. Step 4: Simplify right side
    5,249.88x = 20,950,629.52
  5. Step 5: Solve for x
    x = 20,950,629.52/5,249.88
  6. Step 6: Final answer
    x = 3,990.69

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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.