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Finding the Fourth Proportional to 6,216.86, 8,579.34 and 3,699.09

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Solution

The fourth proportional to 6,216.86, 8,579.34 and 3,699.09 is: 5,104.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.86 : 8,579.34 = 3,699.09 : x
  2. Step 2: Convert to fraction form
    6,216.86/8,579.34 = 3,699.09/x
  3. Step 3: Cross multiply
    6,216.86x = 8,579.34 × 3,699.09
  4. Step 4: Simplify right side
    6,216.86x = 31,735,750.80
  5. Step 5: Solve for x
    x = 31,735,750.80/6,216.86
  6. Step 6: Final answer
    x = 5,104.79

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