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Finding the Fourth Proportional to 6,660.36, 9,992.16 and 2,762.64

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Solution

The fourth proportional to 6,660.36, 9,992.16 and 2,762.64 is: 4,144.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.36 : 9,992.16 = 2,762.64 : x
  2. Step 2: Convert to fraction form
    6,660.36/9,992.16 = 2,762.64/x
  3. Step 3: Cross multiply
    6,660.36x = 9,992.16 × 2,762.64
  4. Step 4: Simplify right side
    6,660.36x = 27,604,740.90
  5. Step 5: Solve for x
    x = 27,604,740.90/6,660.36
  6. Step 6: Final answer
    x = 4,144.63

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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.