Home / 5,221.33-7,821.97-3,241.08

Finding the Fourth Proportional to 5,221.33, 7,821.97 and 3,241.08

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Solution

The fourth proportional to 5,221.33, 7,821.97 and 3,241.08 is: 4,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.33 : 7,821.97 = 3,241.08 : x
  2. Step 2: Convert to fraction form
    5,221.33/7,821.97 = 3,241.08/x
  3. Step 3: Cross multiply
    5,221.33x = 7,821.97 × 3,241.08
  4. Step 4: Simplify right side
    5,221.33x = 25,351,622.42
  5. Step 5: Solve for x
    x = 25,351,622.42/5,221.33
  6. Step 6: Final answer
    x = 4,855.40

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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.