Home / 7,825.09-11,735.20-2,629.75

Finding the Fourth Proportional to 7,825.09, 11,735.20 and 2,629.75

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Solution

The fourth proportional to 7,825.09, 11,735.20 and 2,629.75 is: 3,943.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.09 : 11,735.20 = 2,629.75 : x
  2. Step 2: Convert to fraction form
    7,825.09/11,735.20 = 2,629.75/x
  3. Step 3: Cross multiply
    7,825.09x = 11,735.20 × 2,629.75
  4. Step 4: Simplify right side
    7,825.09x = 30,860,642.20
  5. Step 5: Solve for x
    x = 30,860,642.20/7,825.09
  6. Step 6: Final answer
    x = 3,943.81

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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.