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Finding the Fourth Proportional to 6,804.60, 10,208.34 and 2,187

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Solution

The fourth proportional to 6,804.60, 10,208.34 and 2,187 is: 3,280.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,804.60 : 10,208.34 = 2,187 : x
  2. Step 2: Convert to fraction form
    6,804.60/10,208.34 = 2,187/x
  3. Step 3: Cross multiply
    6,804.60x = 10,208.34 × 2,187
  4. Step 4: Simplify right side
    6,804.60x = 22,325,639.58
  5. Step 5: Solve for x
    x = 22,325,639.58/6,804.60
  6. Step 6: Final answer
    x = 3,280.96

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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.