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Finding the Fourth Proportional to 3,213.06, 4,815.06 and 2,881.92

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Solution

The fourth proportional to 3,213.06, 4,815.06 and 2,881.92 is: 4,318.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.06 : 4,815.06 = 2,881.92 : x
  2. Step 2: Convert to fraction form
    3,213.06/4,815.06 = 2,881.92/x
  3. Step 3: Cross multiply
    3,213.06x = 4,815.06 × 2,881.92
  4. Step 4: Simplify right side
    3,213.06x = 13,876,617.72
  5. Step 5: Solve for x
    x = 13,876,617.72/3,213.06
  6. Step 6: Final answer
    x = 4,318.82

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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.