Home / 2,115.14-3,173.31-1,335.11

Finding the Fourth Proportional to 2,115.14, 3,173.31 and 1,335.11

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Solution

The fourth proportional to 2,115.14, 3,173.31 and 1,335.11 is: 2,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.14 : 3,173.31 = 1,335.11 : x
  2. Step 2: Convert to fraction form
    2,115.14/3,173.31 = 1,335.11/x
  3. Step 3: Cross multiply
    2,115.14x = 3,173.31 × 1,335.11
  4. Step 4: Simplify right side
    2,115.14x = 4,236,702.05
  5. Step 5: Solve for x
    x = 4,236,702.05/2,115.14
  6. Step 6: Final answer
    x = 2,003.04

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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.