Home / 3,108.17-4,662.25-2,131.31

Finding the Fourth Proportional to 3,108.17, 4,662.25 and 2,131.31

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Solution

The fourth proportional to 3,108.17, 4,662.25 and 2,131.31 is: 3,196.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.17 : 4,662.25 = 2,131.31 : x
  2. Step 2: Convert to fraction form
    3,108.17/4,662.25 = 2,131.31/x
  3. Step 3: Cross multiply
    3,108.17x = 4,662.25 × 2,131.31
  4. Step 4: Simplify right side
    3,108.17x = 9,936,676.74
  5. Step 5: Solve for x
    x = 9,936,676.74/3,108.17
  6. Step 6: Final answer
    x = 3,196.96

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Double scale
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Similar ratio
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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.