Home / 7,269.29-10,905.05-3,109.31

Finding the Fourth Proportional to 7,269.29, 10,905.05 and 3,109.31

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Solution

The fourth proportional to 7,269.29, 10,905.05 and 3,109.31 is: 4,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,269.29 : 10,905.05 = 3,109.31 : x
  2. Step 2: Convert to fraction form
    7,269.29/10,905.05 = 3,109.31/x
  3. Step 3: Cross multiply
    7,269.29x = 10,905.05 × 3,109.31
  4. Step 4: Simplify right side
    7,269.29x = 33,907,192.73
  5. Step 5: Solve for x
    x = 33,907,192.73/7,269.29
  6. Step 6: Final answer
    x = 4,664.44

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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.