Home / 5,469.90-7,548.12-3,112

Finding the Fourth Proportional to 5,469.90, 7,548.12 and 3,112

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Solution

The fourth proportional to 5,469.90, 7,548.12 and 3,112 is: 4,294.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,469.90 : 7,548.12 = 3,112 : x
  2. Step 2: Convert to fraction form
    5,469.90/7,548.12 = 3,112/x
  3. Step 3: Cross multiply
    5,469.90x = 7,548.12 × 3,112
  4. Step 4: Simplify right side
    5,469.90x = 23,489,749.44
  5. Step 5: Solve for x
    x = 23,489,749.44/5,469.90
  6. Step 6: Final answer
    x = 4,294.37

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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.