Home / 11,190.21-16,785.69-3,399

Finding the Fourth Proportional to 11,190.21, 16,785.69 and 3,399

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Solution

The fourth proportional to 11,190.21, 16,785.69 and 3,399 is: 5,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.21 : 16,785.69 = 3,399 : x
  2. Step 2: Convert to fraction form
    11,190.21/16,785.69 = 3,399/x
  3. Step 3: Cross multiply
    11,190.21x = 16,785.69 × 3,399
  4. Step 4: Simplify right side
    11,190.21x = 57,054,560.31
  5. Step 5: Solve for x
    x = 57,054,560.31/11,190.21
  6. Step 6: Final answer
    x = 5,098.61

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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.