Home / 2,083.10-2,874.69-1,138.87

Finding the Fourth Proportional to 2,083.10, 2,874.69 and 1,138.87

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Solution

The fourth proportional to 2,083.10, 2,874.69 and 1,138.87 is: 1,571.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.10 : 2,874.69 = 1,138.87 : x
  2. Step 2: Convert to fraction form
    2,083.10/2,874.69 = 1,138.87/x
  3. Step 3: Cross multiply
    2,083.10x = 2,874.69 × 1,138.87
  4. Step 4: Simplify right side
    2,083.10x = 3,273,896.74
  5. Step 5: Solve for x
    x = 3,273,896.74/2,083.10
  6. Step 6: Final answer
    x = 1,571.65

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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.