Home / 3,968.45-5,476.79-2,200.58

Finding the Fourth Proportional to 3,968.45, 5,476.79 and 2,200.58

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Solution

The fourth proportional to 3,968.45, 5,476.79 and 2,200.58 is: 3,036.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.45 : 5,476.79 = 2,200.58 : x
  2. Step 2: Convert to fraction form
    3,968.45/5,476.79 = 2,200.58/x
  3. Step 3: Cross multiply
    3,968.45x = 5,476.79 × 2,200.58
  4. Step 4: Simplify right side
    3,968.45x = 12,052,103.54
  5. Step 5: Solve for x
    x = 12,052,103.54/3,968.45
  6. Step 6: Final answer
    x = 3,036.98

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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.