Home / 4,993.25-7,485.21-3,138.75

Finding the Fourth Proportional to 4,993.25, 7,485.21 and 3,138.75

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Solution

The fourth proportional to 4,993.25, 7,485.21 and 3,138.75 is: 4,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.25 : 7,485.21 = 3,138.75 : x
  2. Step 2: Convert to fraction form
    4,993.25/7,485.21 = 3,138.75/x
  3. Step 3: Cross multiply
    4,993.25x = 7,485.21 × 3,138.75
  4. Step 4: Simplify right side
    4,993.25x = 23,494,202.89
  5. Step 5: Solve for x
    x = 23,494,202.89/4,993.25
  6. Step 6: Final answer
    x = 4,705.20

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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.