Home / 5,249.13-7,244.21-2,891.69

Finding the Fourth Proportional to 5,249.13, 7,244.21 and 2,891.69

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Solution

The fourth proportional to 5,249.13, 7,244.21 and 2,891.69 is: 3,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.13 : 7,244.21 = 2,891.69 : x
  2. Step 2: Convert to fraction form
    5,249.13/7,244.21 = 2,891.69/x
  3. Step 3: Cross multiply
    5,249.13x = 7,244.21 × 2,891.69
  4. Step 4: Simplify right side
    5,249.13x = 20,948,009.61
  5. Step 5: Solve for x
    x = 20,948,009.61/5,249.13
  6. Step 6: Final answer
    x = 3,990.76

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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.