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Finding the Fourth Proportional to 4,769.82, 7,151.94 and 2,171.34

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Solution

The fourth proportional to 4,769.82, 7,151.94 and 2,171.34 is: 3,255.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,769.82 : 7,151.94 = 2,171.34 : x
  2. Step 2: Convert to fraction form
    4,769.82/7,151.94 = 2,171.34/x
  3. Step 3: Cross multiply
    4,769.82x = 7,151.94 × 2,171.34
  4. Step 4: Simplify right side
    4,769.82x = 15,529,293.40
  5. Step 5: Solve for x
    x = 15,529,293.40/4,769.82
  6. Step 6: Final answer
    x = 3,255.74

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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.