Home / 3,491.12-5,231.44-3,161.84

Finding the Fourth Proportional to 3,491.12, 5,231.44 and 3,161.84

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Solution

The fourth proportional to 3,491.12, 5,231.44 and 3,161.84 is: 4,738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.12 : 5,231.44 = 3,161.84 : x
  2. Step 2: Convert to fraction form
    3,491.12/5,231.44 = 3,161.84/x
  3. Step 3: Cross multiply
    3,491.12x = 5,231.44 × 3,161.84
  4. Step 4: Simplify right side
    3,491.12x = 16,540,976.25
  5. Step 5: Solve for x
    x = 16,540,976.25/3,491.12
  6. Step 6: Final answer
    x = 4,738.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.