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Finding the Fourth Proportional to 3,900.54, 5,850.98 and 3,623.75

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Solution

The fourth proportional to 3,900.54, 5,850.98 and 3,623.75 is: 5,435.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.54 : 5,850.98 = 3,623.75 : x
  2. Step 2: Convert to fraction form
    3,900.54/5,850.98 = 3,623.75/x
  3. Step 3: Cross multiply
    3,900.54x = 5,850.98 × 3,623.75
  4. Step 4: Simplify right side
    3,900.54x = 21,202,441.40
  5. Step 5: Solve for x
    x = 21,202,441.40/3,900.54
  6. Step 6: Final answer
    x = 5,435.78

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1.5x scale

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.