Home / 3,968.52-5,476.68-2,200.20

Finding the Fourth Proportional to 3,968.52, 5,476.68 and 2,200.20

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Solution

The fourth proportional to 3,968.52, 5,476.68 and 2,200.20 is: 3,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.52 : 5,476.68 = 2,200.20 : x
  2. Step 2: Convert to fraction form
    3,968.52/5,476.68 = 2,200.20/x
  3. Step 3: Cross multiply
    3,968.52x = 5,476.68 × 2,200.20
  4. Step 4: Simplify right side
    3,968.52x = 12,049,791.34
  5. Step 5: Solve for x
    x = 12,049,791.34/3,968.52
  6. Step 6: Final answer
    x = 3,036.34

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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.