Home / 6,738.48-10,109.34-2,121.48

Finding the Fourth Proportional to 6,738.48, 10,109.34 and 2,121.48

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Solution

The fourth proportional to 6,738.48, 10,109.34 and 2,121.48 is: 3,182.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,738.48 : 10,109.34 = 2,121.48 : x
  2. Step 2: Convert to fraction form
    6,738.48/10,109.34 = 2,121.48/x
  3. Step 3: Cross multiply
    6,738.48x = 10,109.34 × 2,121.48
  4. Step 4: Simplify right side
    6,738.48x = 21,446,762.62
  5. Step 5: Solve for x
    x = 21,446,762.62/6,738.48
  6. Step 6: Final answer
    x = 3,182.73

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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.