Home / 2,753.10-3,798.42-1,689.75

Finding the Fourth Proportional to 2,753.10, 3,798.42 and 1,689.75

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Solution

The fourth proportional to 2,753.10, 3,798.42 and 1,689.75 is: 2,331.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.10 : 3,798.42 = 1,689.75 : x
  2. Step 2: Convert to fraction form
    2,753.10/3,798.42 = 1,689.75/x
  3. Step 3: Cross multiply
    2,753.10x = 3,798.42 × 1,689.75
  4. Step 4: Simplify right side
    2,753.10x = 6,418,380.20
  5. Step 5: Solve for x
    x = 6,418,380.20/2,753.10
  6. Step 6: Final answer
    x = 2,331.33

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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.