Home / 3,863.25-5,778.41-2,378.79

Finding the Fourth Proportional to 3,863.25, 5,778.41 and 2,378.79

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Solution

The fourth proportional to 3,863.25, 5,778.41 and 2,378.79 is: 3,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.25 : 5,778.41 = 2,378.79 : x
  2. Step 2: Convert to fraction form
    3,863.25/5,778.41 = 2,378.79/x
  3. Step 3: Cross multiply
    3,863.25x = 5,778.41 × 2,378.79
  4. Step 4: Simplify right side
    3,863.25x = 13,745,612.03
  5. Step 5: Solve for x
    x = 13,745,612.03/3,863.25
  6. Step 6: Final answer
    x = 3,558.04

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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.