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Finding the Fourth Proportional to 5,018.78, 7,523.17 and 1,729.78

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Solution

The fourth proportional to 5,018.78, 7,523.17 and 1,729.78 is: 2,592.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.78 : 7,523.17 = 1,729.78 : x
  2. Step 2: Convert to fraction form
    5,018.78/7,523.17 = 1,729.78/x
  3. Step 3: Cross multiply
    5,018.78x = 7,523.17 × 1,729.78
  4. Step 4: Simplify right side
    5,018.78x = 13,013,405.87
  5. Step 5: Solve for x
    x = 13,013,405.87/5,018.78
  6. Step 6: Final answer
    x = 2,592.94

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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.