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Finding the Fourth Proportional to 6,200, 8,556.06 and 3,405.56

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Solution

The fourth proportional to 6,200, 8,556.06 and 3,405.56 is: 4,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,200 : 8,556.06 = 3,405.56 : x
  2. Step 2: Convert to fraction form
    6,200/8,556.06 = 3,405.56/x
  3. Step 3: Cross multiply
    6,200x = 8,556.06 × 3,405.56
  4. Step 4: Simplify right side
    6,200x = 29,138,175.69
  5. Step 5: Solve for x
    x = 29,138,175.69/6,200
  6. Step 6: Final answer
    x = 4,699.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.