Home / 7,512.83-11,270.26-3,129.26

Finding the Fourth Proportional to 7,512.83, 11,270.26 and 3,129.26

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Solution

The fourth proportional to 7,512.83, 11,270.26 and 3,129.26 is: 4,694.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.83 : 11,270.26 = 3,129.26 : x
  2. Step 2: Convert to fraction form
    7,512.83/11,270.26 = 3,129.26/x
  3. Step 3: Cross multiply
    7,512.83x = 11,270.26 × 3,129.26
  4. Step 4: Simplify right side
    7,512.83x = 35,267,561.87
  5. Step 5: Solve for x
    x = 35,267,561.87/7,512.83
  6. Step 6: Final answer
    x = 4,694.31

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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.