Home / 2,805.30-3,871.17-1,626.75

Finding the Fourth Proportional to 2,805.30, 3,871.17 and 1,626.75

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Solution

The fourth proportional to 2,805.30, 3,871.17 and 1,626.75 is: 2,244.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.30 : 3,871.17 = 1,626.75 : x
  2. Step 2: Convert to fraction form
    2,805.30/3,871.17 = 1,626.75/x
  3. Step 3: Cross multiply
    2,805.30x = 3,871.17 × 1,626.75
  4. Step 4: Simplify right side
    2,805.30x = 6,297,425.80
  5. Step 5: Solve for x
    x = 6,297,425.80/2,805.30
  6. Step 6: Final answer
    x = 2,244.83

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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.