Home / 3,856.44-5,781.39-1,635.18

Finding the Fourth Proportional to 3,856.44, 5,781.39 and 1,635.18

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Solution

The fourth proportional to 3,856.44, 5,781.39 and 1,635.18 is: 2,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.44 : 5,781.39 = 1,635.18 : x
  2. Step 2: Convert to fraction form
    3,856.44/5,781.39 = 1,635.18/x
  3. Step 3: Cross multiply
    3,856.44x = 5,781.39 × 1,635.18
  4. Step 4: Simplify right side
    3,856.44x = 9,453,613.30
  5. Step 5: Solve for x
    x = 9,453,613.30/3,856.44
  6. Step 6: Final answer
    x = 2,451.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.