Home / 4,083.60-6,119.72-2,131.90

Finding the Fourth Proportional to 4,083.60, 6,119.72 and 2,131.90

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Solution

The fourth proportional to 4,083.60, 6,119.72 and 2,131.90 is: 3,194.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,083.60 : 6,119.72 = 2,131.90 : x
  2. Step 2: Convert to fraction form
    4,083.60/6,119.72 = 2,131.90/x
  3. Step 3: Cross multiply
    4,083.60x = 6,119.72 × 2,131.90
  4. Step 4: Simplify right side
    4,083.60x = 13,046,631.07
  5. Step 5: Solve for x
    x = 13,046,631.07/4,083.60
  6. Step 6: Final answer
    x = 3,194.88

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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.