Home / 5,090.82-7,624.94-3,912.15

Finding the Fourth Proportional to 5,090.82, 7,624.94 and 3,912.15

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Solution

The fourth proportional to 5,090.82, 7,624.94 and 3,912.15 is: 5,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.82 : 7,624.94 = 3,912.15 : x
  2. Step 2: Convert to fraction form
    5,090.82/7,624.94 = 3,912.15/x
  3. Step 3: Cross multiply
    5,090.82x = 7,624.94 × 3,912.15
  4. Step 4: Simplify right side
    5,090.82x = 29,829,880.68
  5. Step 5: Solve for x
    x = 29,829,880.68/5,090.82
  6. Step 6: Final answer
    x = 5,859.55

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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.