Home / 7,129.25-10,684.44-5,161.46

Finding the Fourth Proportional to 7,129.25, 10,684.44 and 5,161.46

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Solution

The fourth proportional to 7,129.25, 10,684.44 and 5,161.46 is: 7,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.25 : 10,684.44 = 5,161.46 : x
  2. Step 2: Convert to fraction form
    7,129.25/10,684.44 = 5,161.46/x
  3. Step 3: Cross multiply
    7,129.25x = 10,684.44 × 5,161.46
  4. Step 4: Simplify right side
    7,129.25x = 55,147,309.68
  5. Step 5: Solve for x
    x = 55,147,309.68/7,129.25
  6. Step 6: Final answer
    x = 7,735.36

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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.