Home / 3,969.36-5,477.89-2,200.97

Finding the Fourth Proportional to 3,969.36, 5,477.89 and 2,200.97

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Solution

The fourth proportional to 3,969.36, 5,477.89 and 2,200.97 is: 3,037.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.36 : 5,477.89 = 2,200.97 : x
  2. Step 2: Convert to fraction form
    3,969.36/5,477.89 = 2,200.97/x
  3. Step 3: Cross multiply
    3,969.36x = 5,477.89 × 2,200.97
  4. Step 4: Simplify right side
    3,969.36x = 12,056,638.66
  5. Step 5: Solve for x
    x = 12,056,638.66/3,969.36
  6. Step 6: Final answer
    x = 3,037.43

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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.