Home / 6,738.75-10,108.53-2,121.75

Finding the Fourth Proportional to 6,738.75, 10,108.53 and 2,121.75

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Solution

The fourth proportional to 6,738.75, 10,108.53 and 2,121.75 is: 3,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,738.75 : 10,108.53 = 2,121.75 : x
  2. Step 2: Convert to fraction form
    6,738.75/10,108.53 = 2,121.75/x
  3. Step 3: Cross multiply
    6,738.75x = 10,108.53 × 2,121.75
  4. Step 4: Simplify right side
    6,738.75x = 21,447,773.53
  5. Step 5: Solve for x
    x = 21,447,773.53/6,738.75
  6. Step 6: Final answer
    x = 3,182.75

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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.