Home / 4,081.43-6,121.22-1,999.35

Finding the Fourth Proportional to 4,081.43, 6,121.22 and 1,999.35

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Solution

The fourth proportional to 4,081.43, 6,121.22 and 1,999.35 is: 2,998.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.43 : 6,121.22 = 1,999.35 : x
  2. Step 2: Convert to fraction form
    4,081.43/6,121.22 = 1,999.35/x
  3. Step 3: Cross multiply
    4,081.43x = 6,121.22 × 1,999.35
  4. Step 4: Simplify right side
    4,081.43x = 12,238,461.21
  5. Step 5: Solve for x
    x = 12,238,461.21/4,081.43
  6. Step 6: Final answer
    x = 2,998.57

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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.