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Finding the Fourth Proportional to 3,469.77, 5,208.17 and 2,011.77

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Solution

The fourth proportional to 3,469.77, 5,208.17 and 2,011.77 is: 3,019.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.77 : 5,208.17 = 2,011.77 : x
  2. Step 2: Convert to fraction form
    3,469.77/5,208.17 = 2,011.77/x
  3. Step 3: Cross multiply
    3,469.77x = 5,208.17 × 2,011.77
  4. Step 4: Simplify right side
    3,469.77x = 10,477,630.10
  5. Step 5: Solve for x
    x = 10,477,630.10/3,469.77
  6. Step 6: Final answer
    x = 3,019.69

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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.