Home / 3,231.10-4,843.05-1,381.90

Finding the Fourth Proportional to 3,231.10, 4,843.05 and 1,381.90

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Solution

The fourth proportional to 3,231.10, 4,843.05 and 1,381.90 is: 2,071.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.10 : 4,843.05 = 1,381.90 : x
  2. Step 2: Convert to fraction form
    3,231.10/4,843.05 = 1,381.90/x
  3. Step 3: Cross multiply
    3,231.10x = 4,843.05 × 1,381.90
  4. Step 4: Simplify right side
    3,231.10x = 6,692,610.80
  5. Step 5: Solve for x
    x = 6,692,610.80/3,231.10
  6. Step 6: Final answer
    x = 2,071.31

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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.