Home / 2,116.75-3,181.20-2,104.60

Finding the Fourth Proportional to 2,116.75, 3,181.20 and 2,104.60

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Solution

The fourth proportional to 2,116.75, 3,181.20 and 2,104.60 is: 3,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.75 : 3,181.20 = 2,104.60 : x
  2. Step 2: Convert to fraction form
    2,116.75/3,181.20 = 2,104.60/x
  3. Step 3: Cross multiply
    2,116.75x = 3,181.20 × 2,104.60
  4. Step 4: Simplify right side
    2,116.75x = 6,695,153.52
  5. Step 5: Solve for x
    x = 6,695,153.52/2,116.75
  6. Step 6: Final answer
    x = 3,162.94

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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.