Home / 3,170.33-4,376.58-2,109.86

Finding the Fourth Proportional to 3,170.33, 4,376.58 and 2,109.86

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Solution

The fourth proportional to 3,170.33, 4,376.58 and 2,109.86 is: 2,912.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.33 : 4,376.58 = 2,109.86 : x
  2. Step 2: Convert to fraction form
    3,170.33/4,376.58 = 2,109.86/x
  3. Step 3: Cross multiply
    3,170.33x = 4,376.58 × 2,109.86
  4. Step 4: Simplify right side
    3,170.33x = 9,233,949.20
  5. Step 5: Solve for x
    x = 9,233,949.20/3,170.33
  6. Step 6: Final answer
    x = 2,912.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.