Home / 3,972.26-5,481.78-2,203.94

Finding the Fourth Proportional to 3,972.26, 5,481.78 and 2,203.94

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Solution

The fourth proportional to 3,972.26, 5,481.78 and 2,203.94 is: 3,041.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.26 : 5,481.78 = 2,203.94 : x
  2. Step 2: Convert to fraction form
    3,972.26/5,481.78 = 2,203.94/x
  3. Step 3: Cross multiply
    3,972.26x = 5,481.78 × 2,203.94
  4. Step 4: Simplify right side
    3,972.26x = 12,081,514.21
  5. Step 5: Solve for x
    x = 12,081,514.21/3,972.26
  6. Step 6: Final answer
    x = 3,041.47

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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.