Home / 5,229.72-7,216.82-2,991.81

Finding the Fourth Proportional to 5,229.72, 7,216.82 and 2,991.81

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Solution

The fourth proportional to 5,229.72, 7,216.82 and 2,991.81 is: 4,128.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.72 : 7,216.82 = 2,991.81 : x
  2. Step 2: Convert to fraction form
    5,229.72/7,216.82 = 2,991.81/x
  3. Step 3: Cross multiply
    5,229.72x = 7,216.82 × 2,991.81
  4. Step 4: Simplify right side
    5,229.72x = 21,591,308.26
  5. Step 5: Solve for x
    x = 21,591,308.26/5,229.72
  6. Step 6: Final answer
    x = 4,128.58

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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.