Home / 2,083.29-2,874.85-1,139.08

Finding the Fourth Proportional to 2,083.29, 2,874.85 and 1,139.08

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Solution

The fourth proportional to 2,083.29, 2,874.85 and 1,139.08 is: 1,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.29 : 2,874.85 = 1,139.08 : x
  2. Step 2: Convert to fraction form
    2,083.29/2,874.85 = 1,139.08/x
  3. Step 3: Cross multiply
    2,083.29x = 2,874.85 × 1,139.08
  4. Step 4: Simplify right side
    2,083.29x = 3,274,684.14
  5. Step 5: Solve for x
    x = 3,274,684.14/2,083.29
  6. Step 6: Final answer
    x = 1,571.88

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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.