Home / 2,768.48-3,823.81-2,021.24

Finding the Fourth Proportional to 2,768.48, 3,823.81 and 2,021.24

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Solution

The fourth proportional to 2,768.48, 3,823.81 and 2,021.24 is: 2,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.48 : 3,823.81 = 2,021.24 : x
  2. Step 2: Convert to fraction form
    2,768.48/3,823.81 = 2,021.24/x
  3. Step 3: Cross multiply
    2,768.48x = 3,823.81 × 2,021.24
  4. Step 4: Simplify right side
    2,768.48x = 7,728,837.72
  5. Step 5: Solve for x
    x = 7,728,837.72/2,768.48
  6. Step 6: Final answer
    x = 2,791.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.