Home / 3,972.62-5,481.64-2,558.23

Finding the Fourth Proportional to 3,972.62, 5,481.64 and 2,558.23

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Solution

The fourth proportional to 3,972.62, 5,481.64 and 2,558.23 is: 3,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.62 : 5,481.64 = 2,558.23 : x
  2. Step 2: Convert to fraction form
    3,972.62/5,481.64 = 2,558.23/x
  3. Step 3: Cross multiply
    3,972.62x = 5,481.64 × 2,558.23
  4. Step 4: Simplify right side
    3,972.62x = 14,023,279.91
  5. Step 5: Solve for x
    x = 14,023,279.91/3,972.62
  6. Step 6: Final answer
    x = 3,529.98

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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.