Home / 3,969.25-5,477.74-2,200.75

Finding the Fourth Proportional to 3,969.25, 5,477.74 and 2,200.75

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Solution

The fourth proportional to 3,969.25, 5,477.74 and 2,200.75 is: 3,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.25 : 5,477.74 = 2,200.75 : x
  2. Step 2: Convert to fraction form
    3,969.25/5,477.74 = 2,200.75/x
  3. Step 3: Cross multiply
    3,969.25x = 5,477.74 × 2,200.75
  4. Step 4: Simplify right side
    3,969.25x = 12,055,117.11
  5. Step 5: Solve for x
    x = 12,055,117.11/3,969.25
  6. Step 6: Final answer
    x = 3,037.13

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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.