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Finding the Fourth Proportional to 3,477.86, 5,213.01 and 1,627.82

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Solution

The fourth proportional to 3,477.86, 5,213.01 and 1,627.82 is: 2,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.86 : 5,213.01 = 1,627.82 : x
  2. Step 2: Convert to fraction form
    3,477.86/5,213.01 = 1,627.82/x
  3. Step 3: Cross multiply
    3,477.86x = 5,213.01 × 1,627.82
  4. Step 4: Simplify right side
    3,477.86x = 8,485,841.94
  5. Step 5: Solve for x
    x = 8,485,841.94/3,477.86
  6. Step 6: Final answer
    x = 2,439.96

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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.