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Finding the Fourth Proportional to 7,223.25, 9,968.09 and 3,911.25

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Solution

The fourth proportional to 7,223.25, 9,968.09 and 3,911.25 is: 5,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.25 : 9,968.09 = 3,911.25 : x
  2. Step 2: Convert to fraction form
    7,223.25/9,968.09 = 3,911.25/x
  3. Step 3: Cross multiply
    7,223.25x = 9,968.09 × 3,911.25
  4. Step 4: Simplify right side
    7,223.25x = 38,987,672.46
  5. Step 5: Solve for x
    x = 38,987,672.46/7,223.25
  6. Step 6: Final answer
    x = 5,397.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.