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Finding the Fourth Proportional to 7,762.68, 11,644 and 3,083.76

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Solution

The fourth proportional to 7,762.68, 11,644 and 3,083.76 is: 4,625.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762.68 : 11,644 = 3,083.76 : x
  2. Step 2: Convert to fraction form
    7,762.68/11,644 = 3,083.76/x
  3. Step 3: Cross multiply
    7,762.68x = 11,644 × 3,083.76
  4. Step 4: Simplify right side
    7,762.68x = 35,907,301.44
  5. Step 5: Solve for x
    x = 35,907,301.44/7,762.68
  6. Step 6: Final answer
    x = 4,625.63

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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.