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Finding the Fourth Proportional to 6,611.96, 9,908.76 and 2,908.64

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Solution

The fourth proportional to 6,611.96, 9,908.76 and 2,908.64 is: 4,358.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.96 : 9,908.76 = 2,908.64 : x
  2. Step 2: Convert to fraction form
    6,611.96/9,908.76 = 2,908.64/x
  3. Step 3: Cross multiply
    6,611.96x = 9,908.76 × 2,908.64
  4. Step 4: Simplify right side
    6,611.96x = 28,821,015.69
  5. Step 5: Solve for x
    x = 28,821,015.69/6,611.96
  6. Step 6: Final answer
    x = 4,358.92

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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.