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Finding the Fourth Proportional to 2,774.54, 3,831.75 and 2,399.72

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Solution

The fourth proportional to 2,774.54, 3,831.75 and 2,399.72 is: 3,314.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.54 : 3,831.75 = 2,399.72 : x
  2. Step 2: Convert to fraction form
    2,774.54/3,831.75 = 2,399.72/x
  3. Step 3: Cross multiply
    2,774.54x = 3,831.75 × 2,399.72
  4. Step 4: Simplify right side
    2,774.54x = 9,195,107.95
  5. Step 5: Solve for x
    x = 9,195,107.95/2,774.54
  6. Step 6: Final answer
    x = 3,314.11

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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.