Home / 3,885.80-5,361.94-2,206.60

Finding the Fourth Proportional to 3,885.80, 5,361.94 and 2,206.60

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Solution

The fourth proportional to 3,885.80, 5,361.94 and 2,206.60 is: 3,044.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.80 : 5,361.94 = 2,206.60 : x
  2. Step 2: Convert to fraction form
    3,885.80/5,361.94 = 2,206.60/x
  3. Step 3: Cross multiply
    3,885.80x = 5,361.94 × 2,206.60
  4. Step 4: Simplify right side
    3,885.80x = 11,831,656.80
  5. Step 5: Solve for x
    x = 11,831,656.80/3,885.80
  6. Step 6: Final answer
    x = 3,044.84

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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.