Home / 4,912.90-7,359.18-3,149.26

Finding the Fourth Proportional to 4,912.90, 7,359.18 and 3,149.26

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Solution

The fourth proportional to 4,912.90, 7,359.18 and 3,149.26 is: 4,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.90 : 7,359.18 = 3,149.26 : x
  2. Step 2: Convert to fraction form
    4,912.90/7,359.18 = 3,149.26/x
  3. Step 3: Cross multiply
    4,912.90x = 7,359.18 × 3,149.26
  4. Step 4: Simplify right side
    4,912.90x = 23,175,971.21
  5. Step 5: Solve for x
    x = 23,175,971.21/4,912.90
  6. Step 6: Final answer
    x = 4,717.37

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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.