Home / 3,883.92-5,820.64-2,785.88

Finding the Fourth Proportional to 3,883.92, 5,820.64 and 2,785.88

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Solution

The fourth proportional to 3,883.92, 5,820.64 and 2,785.88 is: 4,175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.92 : 5,820.64 = 2,785.88 : x
  2. Step 2: Convert to fraction form
    3,883.92/5,820.64 = 2,785.88/x
  3. Step 3: Cross multiply
    3,883.92x = 5,820.64 × 2,785.88
  4. Step 4: Simplify right side
    3,883.92x = 16,215,604.56
  5. Step 5: Solve for x
    x = 16,215,604.56/3,883.92
  6. Step 6: Final answer
    x = 4,175.06

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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.