Home / 3,645.42-5,469.50-2,185.62

Finding the Fourth Proportional to 3,645.42, 5,469.50 and 2,185.62

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Solution

The fourth proportional to 3,645.42, 5,469.50 and 2,185.62 is: 3,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.42 : 5,469.50 = 2,185.62 : x
  2. Step 2: Convert to fraction form
    3,645.42/5,469.50 = 2,185.62/x
  3. Step 3: Cross multiply
    3,645.42x = 5,469.50 × 2,185.62
  4. Step 4: Simplify right side
    3,645.42x = 11,954,248.59
  5. Step 5: Solve for x
    x = 11,954,248.59/3,645.42
  6. Step 6: Final answer
    x = 3,279.25

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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.