Home / 5,195.21-7,171.79-3,309.37

Finding the Fourth Proportional to 5,195.21, 7,171.79 and 3,309.37

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Solution

The fourth proportional to 5,195.21, 7,171.79 and 3,309.37 is: 4,568.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195.21 : 7,171.79 = 3,309.37 : x
  2. Step 2: Convert to fraction form
    5,195.21/7,171.79 = 3,309.37/x
  3. Step 3: Cross multiply
    5,195.21x = 7,171.79 × 3,309.37
  4. Step 4: Simplify right side
    5,195.21x = 23,734,131.15
  5. Step 5: Solve for x
    x = 23,734,131.15/5,195.21
  6. Step 6: Final answer
    x = 4,568.47

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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.