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Finding the Fourth Proportional to 3,097.78, 4,645.02 and 1,781.26

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Solution

The fourth proportional to 3,097.78, 4,645.02 and 1,781.26 is: 2,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.78 : 4,645.02 = 1,781.26 : x
  2. Step 2: Convert to fraction form
    3,097.78/4,645.02 = 1,781.26/x
  3. Step 3: Cross multiply
    3,097.78x = 4,645.02 × 1,781.26
  4. Step 4: Simplify right side
    3,097.78x = 8,273,988.33
  5. Step 5: Solve for x
    x = 8,273,988.33/3,097.78
  6. Step 6: Final answer
    x = 2,670.94

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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.