Home / 5,144.92-7,712.82-2,221.63

Finding the Fourth Proportional to 5,144.92, 7,712.82 and 2,221.63

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Solution

The fourth proportional to 5,144.92, 7,712.82 and 2,221.63 is: 3,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.92 : 7,712.82 = 2,221.63 : x
  2. Step 2: Convert to fraction form
    5,144.92/7,712.82 = 2,221.63/x
  3. Step 3: Cross multiply
    5,144.92x = 7,712.82 × 2,221.63
  4. Step 4: Simplify right side
    5,144.92x = 17,135,013.01
  5. Step 5: Solve for x
    x = 17,135,013.01/5,144.92
  6. Step 6: Final answer
    x = 3,330.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.