Home / 2,083.11-2,874.60-1,138.92

Finding the Fourth Proportional to 2,083.11, 2,874.60 and 1,138.92

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Solution

The fourth proportional to 2,083.11, 2,874.60 and 1,138.92 is: 1,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.11 : 2,874.60 = 1,138.92 : x
  2. Step 2: Convert to fraction form
    2,083.11/2,874.60 = 1,138.92/x
  3. Step 3: Cross multiply
    2,083.11x = 2,874.60 × 1,138.92
  4. Step 4: Simplify right side
    2,083.11x = 3,273,939.43
  5. Step 5: Solve for x
    x = 3,273,939.43/2,083.11
  6. Step 6: Final answer
    x = 1,571.66

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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.