Home / 3,969.56-5,477.94-2,201.15

Finding the Fourth Proportional to 3,969.56, 5,477.94 and 2,201.15

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Solution

The fourth proportional to 3,969.56, 5,477.94 and 2,201.15 is: 3,037.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.56 : 5,477.94 = 2,201.15 : x
  2. Step 2: Convert to fraction form
    3,969.56/5,477.94 = 2,201.15/x
  3. Step 3: Cross multiply
    3,969.56x = 5,477.94 × 2,201.15
  4. Step 4: Simplify right side
    3,969.56x = 12,057,740.24
  5. Step 5: Solve for x
    x = 12,057,740.24/3,969.56
  6. Step 6: Final answer
    x = 3,037.55

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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.