Home / 2,083.28-2,874.90-1,151.78

Finding the Fourth Proportional to 2,083.28, 2,874.90 and 1,151.78

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Solution

The fourth proportional to 2,083.28, 2,874.90 and 1,151.78 is: 1,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.28 : 2,874.90 = 1,151.78 : x
  2. Step 2: Convert to fraction form
    2,083.28/2,874.90 = 1,151.78/x
  3. Step 3: Cross multiply
    2,083.28x = 2,874.90 × 1,151.78
  4. Step 4: Simplify right side
    2,083.28x = 3,311,252.32
  5. Step 5: Solve for x
    x = 3,311,252.32/2,083.28
  6. Step 6: Final answer
    x = 1,589.44

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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.