Home / 5,121.24-7,682-2,001.12

Finding the Fourth Proportional to 5,121.24, 7,682 and 2,001.12

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Solution

The fourth proportional to 5,121.24, 7,682 and 2,001.12 is: 3,001.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.24 : 7,682 = 2,001.12 : x
  2. Step 2: Convert to fraction form
    5,121.24/7,682 = 2,001.12/x
  3. Step 3: Cross multiply
    5,121.24x = 7,682 × 2,001.12
  4. Step 4: Simplify right side
    5,121.24x = 15,372,603.84
  5. Step 5: Solve for x
    x = 15,372,603.84/5,121.24
  6. Step 6: Final answer
    x = 3,001.73

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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.