Home / 5,394.38-8,096.16-2,109.78

Finding the Fourth Proportional to 5,394.38, 8,096.16 and 2,109.78

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Solution

The fourth proportional to 5,394.38, 8,096.16 and 2,109.78 is: 3,166.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.38 : 8,096.16 = 2,109.78 : x
  2. Step 2: Convert to fraction form
    5,394.38/8,096.16 = 2,109.78/x
  3. Step 3: Cross multiply
    5,394.38x = 8,096.16 × 2,109.78
  4. Step 4: Simplify right side
    5,394.38x = 17,081,116.44
  5. Step 5: Solve for x
    x = 17,081,116.44/5,394.38
  6. Step 6: Final answer
    x = 3,166.47

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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.