Home / 2,113.62-3,169.32-1,236.42

Finding the Fourth Proportional to 2,113.62, 3,169.32 and 1,236.42

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Solution

The fourth proportional to 2,113.62, 3,169.32 and 1,236.42 is: 1,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.62 : 3,169.32 = 1,236.42 : x
  2. Step 2: Convert to fraction form
    2,113.62/3,169.32 = 1,236.42/x
  3. Step 3: Cross multiply
    2,113.62x = 3,169.32 × 1,236.42
  4. Step 4: Simplify right side
    2,113.62x = 3,918,610.63
  5. Step 5: Solve for x
    x = 3,918,610.63/2,113.62
  6. Step 6: Final answer
    x = 1,853.98

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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.