Home / 5,455.26-8,185.82-2,168.38

Finding the Fourth Proportional to 5,455.26, 8,185.82 and 2,168.38

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Solution

The fourth proportional to 5,455.26, 8,185.82 and 2,168.38 is: 3,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.26 : 8,185.82 = 2,168.38 : x
  2. Step 2: Convert to fraction form
    5,455.26/8,185.82 = 2,168.38/x
  3. Step 3: Cross multiply
    5,455.26x = 8,185.82 × 2,168.38
  4. Step 4: Simplify right side
    5,455.26x = 17,749,916.60
  5. Step 5: Solve for x
    x = 17,749,916.60/5,455.26
  6. Step 6: Final answer
    x = 3,253.73

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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.