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Finding the Fourth Proportional to 4,811.82, 7,221.36 and 3,248.12

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Solution

The fourth proportional to 4,811.82, 7,221.36 and 3,248.12 is: 4,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.82 : 7,221.36 = 3,248.12 : x
  2. Step 2: Convert to fraction form
    4,811.82/7,221.36 = 3,248.12/x
  3. Step 3: Cross multiply
    4,811.82x = 7,221.36 × 3,248.12
  4. Step 4: Simplify right side
    4,811.82x = 23,455,843.84
  5. Step 5: Solve for x
    x = 23,455,843.84/4,811.82
  6. Step 6: Final answer
    x = 4,874.63

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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.