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Finding the Fourth Proportional to 8,604, 12,906.10 and 2,760.60

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Solution

The fourth proportional to 8,604, 12,906.10 and 2,760.60 is: 4,140.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604 : 12,906.10 = 2,760.60 : x
  2. Step 2: Convert to fraction form
    8,604/12,906.10 = 2,760.60/x
  3. Step 3: Cross multiply
    8,604x = 12,906.10 × 2,760.60
  4. Step 4: Simplify right side
    8,604x = 35,628,579.66
  5. Step 5: Solve for x
    x = 35,628,579.66/8,604
  6. Step 6: Final answer
    x = 4,140.93

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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.