Home / 3,969.38-5,477.82-2,201.16

Finding the Fourth Proportional to 3,969.38, 5,477.82 and 2,201.16

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Solution

The fourth proportional to 3,969.38, 5,477.82 and 2,201.16 is: 3,037.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.38 : 5,477.82 = 2,201.16 : x
  2. Step 2: Convert to fraction form
    3,969.38/5,477.82 = 2,201.16/x
  3. Step 3: Cross multiply
    3,969.38x = 5,477.82 × 2,201.16
  4. Step 4: Simplify right side
    3,969.38x = 12,057,558.27
  5. Step 5: Solve for x
    x = 12,057,558.27/3,969.38
  6. Step 6: Final answer
    x = 3,037.64

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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.