Home / 3,771.72-5,205.46-2,116.04

Finding the Fourth Proportional to 3,771.72, 5,205.46 and 2,116.04

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Solution

The fourth proportional to 3,771.72, 5,205.46 and 2,116.04 is: 2,920.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.72 : 5,205.46 = 2,116.04 : x
  2. Step 2: Convert to fraction form
    3,771.72/5,205.46 = 2,116.04/x
  3. Step 3: Cross multiply
    3,771.72x = 5,205.46 × 2,116.04
  4. Step 4: Simplify right side
    3,771.72x = 11,014,961.58
  5. Step 5: Solve for x
    x = 11,014,961.58/3,771.72
  6. Step 6: Final answer
    x = 2,920.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.