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Finding the Fourth Proportional to 7,636.56, 11,456 and 3,254

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Solution

The fourth proportional to 7,636.56, 11,456 and 3,254 is: 4,881.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,636.56 : 11,456 = 3,254 : x
  2. Step 2: Convert to fraction form
    7,636.56/11,456 = 3,254/x
  3. Step 3: Cross multiply
    7,636.56x = 11,456 × 3,254
  4. Step 4: Simplify right side
    7,636.56x = 37,277,824
  5. Step 5: Solve for x
    x = 37,277,824/7,636.56
  6. Step 6: Final answer
    x = 4,881.49

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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.