Home / 4,684.62-7,028.40-3,645.78

Finding the Fourth Proportional to 4,684.62, 7,028.40 and 3,645.78

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Solution

The fourth proportional to 4,684.62, 7,028.40 and 3,645.78 is: 5,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,684.62 : 7,028.40 = 3,645.78 : x
  2. Step 2: Convert to fraction form
    4,684.62/7,028.40 = 3,645.78/x
  3. Step 3: Cross multiply
    4,684.62x = 7,028.40 × 3,645.78
  4. Step 4: Simplify right side
    4,684.62x = 25,624,000.15
  5. Step 5: Solve for x
    x = 25,624,000.15/4,684.62
  6. Step 6: Final answer
    x = 5,469.81

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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.