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Finding the Fourth Proportional to 6,662.11, 9,985.95 and 3,287.25

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Solution

The fourth proportional to 6,662.11, 9,985.95 and 3,287.25 is: 4,927.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.11 : 9,985.95 = 3,287.25 : x
  2. Step 2: Convert to fraction form
    6,662.11/9,985.95 = 3,287.25/x
  3. Step 3: Cross multiply
    6,662.11x = 9,985.95 × 3,287.25
  4. Step 4: Simplify right side
    6,662.11x = 32,826,314.14
  5. Step 5: Solve for x
    x = 32,826,314.14/6,662.11
  6. Step 6: Final answer
    x = 4,927.31

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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.