Home / 3,884.92-5,361.21-2,116.52

Finding the Fourth Proportional to 3,884.92, 5,361.21 and 2,116.52

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Solution

The fourth proportional to 3,884.92, 5,361.21 and 2,116.52 is: 2,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.92 : 5,361.21 = 2,116.52 : x
  2. Step 2: Convert to fraction form
    3,884.92/5,361.21 = 2,116.52/x
  3. Step 3: Cross multiply
    3,884.92x = 5,361.21 × 2,116.52
  4. Step 4: Simplify right side
    3,884.92x = 11,347,108.19
  5. Step 5: Solve for x
    x = 11,347,108.19/3,884.92
  6. Step 6: Final answer
    x = 2,920.81

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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.