Home / 3,940.99-5,441.18-2,745.63

Finding the Fourth Proportional to 3,940.99, 5,441.18 and 2,745.63

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Solution

The fourth proportional to 3,940.99, 5,441.18 and 2,745.63 is: 3,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.99 : 5,441.18 = 2,745.63 : x
  2. Step 2: Convert to fraction form
    3,940.99/5,441.18 = 2,745.63/x
  3. Step 3: Cross multiply
    3,940.99x = 5,441.18 × 2,745.63
  4. Step 4: Simplify right side
    3,940.99x = 14,939,453.32
  5. Step 5: Solve for x
    x = 14,939,453.32/3,940.99
  6. Step 6: Final answer
    x = 3,790.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.