Home / 3,553.12-5,333.33-3,421.90

Finding the Fourth Proportional to 3,553.12, 5,333.33 and 3,421.90

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Solution

The fourth proportional to 3,553.12, 5,333.33 and 3,421.90 is: 5,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.12 : 5,333.33 = 3,421.90 : x
  2. Step 2: Convert to fraction form
    3,553.12/5,333.33 = 3,421.90/x
  3. Step 3: Cross multiply
    3,553.12x = 5,333.33 × 3,421.90
  4. Step 4: Simplify right side
    3,553.12x = 18,250,121.93
  5. Step 5: Solve for x
    x = 18,250,121.93/3,553.12
  6. Step 6: Final answer
    x = 5,136.37

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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.