Home / 5,249.67-7,244.87-2,891.81

Finding the Fourth Proportional to 5,249.67, 7,244.87 and 2,891.81

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Solution

The fourth proportional to 5,249.67, 7,244.87 and 2,891.81 is: 3,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.67 : 7,244.87 = 2,891.81 : x
  2. Step 2: Convert to fraction form
    5,249.67/7,244.87 = 2,891.81/x
  3. Step 3: Cross multiply
    5,249.67x = 7,244.87 × 2,891.81
  4. Step 4: Simplify right side
    5,249.67x = 20,950,787.51
  5. Step 5: Solve for x
    x = 20,950,787.51/5,249.67
  6. Step 6: Final answer
    x = 3,990.88

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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.