Home / 2,023.20-2,792.07-1,138.95

Finding the Fourth Proportional to 2,023.20, 2,792.07 and 1,138.95

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Solution

The fourth proportional to 2,023.20, 2,792.07 and 1,138.95 is: 1,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,023.20 : 2,792.07 = 1,138.95 : x
  2. Step 2: Convert to fraction form
    2,023.20/2,792.07 = 1,138.95/x
  3. Step 3: Cross multiply
    2,023.20x = 2,792.07 × 1,138.95
  4. Step 4: Simplify right side
    2,023.20x = 3,180,028.13
  5. Step 5: Solve for x
    x = 3,180,028.13/2,023.20
  6. Step 6: Final answer
    x = 1,571.78

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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.