Home / 3,327.12-4,991.76-1,380.96

Finding the Fourth Proportional to 3,327.12, 4,991.76 and 1,380.96

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Solution

The fourth proportional to 3,327.12, 4,991.76 and 1,380.96 is: 2,071.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,327.12 : 4,991.76 = 1,380.96 : x
  2. Step 2: Convert to fraction form
    3,327.12/4,991.76 = 1,380.96/x
  3. Step 3: Cross multiply
    3,327.12x = 4,991.76 × 1,380.96
  4. Step 4: Simplify right side
    3,327.12x = 6,893,420.89
  5. Step 5: Solve for x
    x = 6,893,420.89/3,327.12
  6. Step 6: Final answer
    x = 2,071.89

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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.