Home / 5,399.04-8,102.70-2,112.96

Finding the Fourth Proportional to 5,399.04, 8,102.70 and 2,112.96

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Solution

The fourth proportional to 5,399.04, 8,102.70 and 2,112.96 is: 3,171.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.04 : 8,102.70 = 2,112.96 : x
  2. Step 2: Convert to fraction form
    5,399.04/8,102.70 = 2,112.96/x
  3. Step 3: Cross multiply
    5,399.04x = 8,102.70 × 2,112.96
  4. Step 4: Simplify right side
    5,399.04x = 17,120,680.99
  5. Step 5: Solve for x
    x = 17,120,680.99/5,399.04
  6. Step 6: Final answer
    x = 3,171.06

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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.