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Finding the Fourth Proportional to 8,812.22, 13,217.94 and 2,968.80

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Solution

The fourth proportional to 8,812.22, 13,217.94 and 2,968.80 is: 4,453.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.22 : 13,217.94 = 2,968.80 : x
  2. Step 2: Convert to fraction form
    8,812.22/13,217.94 = 2,968.80/x
  3. Step 3: Cross multiply
    8,812.22x = 13,217.94 × 2,968.80
  4. Step 4: Simplify right side
    8,812.22x = 39,241,420.27
  5. Step 5: Solve for x
    x = 39,241,420.27/8,812.22
  6. Step 6: Final answer
    x = 4,453.07

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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.