Home / 7,721.75-11,583.32-2,175.14

Finding the Fourth Proportional to 7,721.75, 11,583.32 and 2,175.14

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Solution

The fourth proportional to 7,721.75, 11,583.32 and 2,175.14 is: 3,262.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.75 : 11,583.32 = 2,175.14 : x
  2. Step 2: Convert to fraction form
    7,721.75/11,583.32 = 2,175.14/x
  3. Step 3: Cross multiply
    7,721.75x = 11,583.32 × 2,175.14
  4. Step 4: Simplify right side
    7,721.75x = 25,195,360.75
  5. Step 5: Solve for x
    x = 25,195,360.75/7,721.75
  6. Step 6: Final answer
    x = 3,262.91

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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.