Home / 3,942.87-5,906.52-2,378.25

Finding the Fourth Proportional to 3,942.87, 5,906.52 and 2,378.25

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Solution

The fourth proportional to 3,942.87, 5,906.52 and 2,378.25 is: 3,562.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.87 : 5,906.52 = 2,378.25 : x
  2. Step 2: Convert to fraction form
    3,942.87/5,906.52 = 2,378.25/x
  3. Step 3: Cross multiply
    3,942.87x = 5,906.52 × 2,378.25
  4. Step 4: Simplify right side
    3,942.87x = 14,047,181.19
  5. Step 5: Solve for x
    x = 14,047,181.19/3,942.87
  6. Step 6: Final answer
    x = 3,562.68

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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.