Home / 4,081.31-6,121.03-1,999.22

Finding the Fourth Proportional to 4,081.31, 6,121.03 and 1,999.22

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Solution

The fourth proportional to 4,081.31, 6,121.03 and 1,999.22 is: 2,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.31 : 6,121.03 = 1,999.22 : x
  2. Step 2: Convert to fraction form
    4,081.31/6,121.03 = 1,999.22/x
  3. Step 3: Cross multiply
    4,081.31x = 6,121.03 × 1,999.22
  4. Step 4: Simplify right side
    4,081.31x = 12,237,285.60
  5. Step 5: Solve for x
    x = 12,237,285.60/4,081.31
  6. Step 6: Final answer
    x = 2,998.37

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1.5x scale

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.