Home / 5,619.44-8,429.36-2,109.09

Finding the Fourth Proportional to 5,619.44, 8,429.36 and 2,109.09

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Solution

The fourth proportional to 5,619.44, 8,429.36 and 2,109.09 is: 3,163.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.44 : 8,429.36 = 2,109.09 : x
  2. Step 2: Convert to fraction form
    5,619.44/8,429.36 = 2,109.09/x
  3. Step 3: Cross multiply
    5,619.44x = 8,429.36 × 2,109.09
  4. Step 4: Simplify right side
    5,619.44x = 17,778,278.88
  5. Step 5: Solve for x
    x = 17,778,278.88/5,619.44
  6. Step 6: Final answer
    x = 3,163.71

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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.