Home / 3,231.33-4,847.01-1,380.88

Finding the Fourth Proportional to 3,231.33, 4,847.01 and 1,380.88

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Solution

The fourth proportional to 3,231.33, 4,847.01 and 1,380.88 is: 2,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.33 : 4,847.01 = 1,380.88 : x
  2. Step 2: Convert to fraction form
    3,231.33/4,847.01 = 1,380.88/x
  3. Step 3: Cross multiply
    3,231.33x = 4,847.01 × 1,380.88
  4. Step 4: Simplify right side
    3,231.33x = 6,693,139.17
  5. Step 5: Solve for x
    x = 6,693,139.17/3,231.33
  6. Step 6: Final answer
    x = 2,071.33

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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.