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Finding the Fourth Proportional to 3,267.28, 4,905.78 and 3,208.96

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Solution

The fourth proportional to 3,267.28, 4,905.78 and 3,208.96 is: 4,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,267.28 : 4,905.78 = 3,208.96 : x
  2. Step 2: Convert to fraction form
    3,267.28/4,905.78 = 3,208.96/x
  3. Step 3: Cross multiply
    3,267.28x = 4,905.78 × 3,208.96
  4. Step 4: Simplify right side
    3,267.28x = 15,742,451.79
  5. Step 5: Solve for x
    x = 15,742,451.79/3,267.28
  6. Step 6: Final answer
    x = 4,818.21

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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.