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Finding the Fourth Proportional to 3,343.78, 5,016.14 and 1,395.54

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Solution

The fourth proportional to 3,343.78, 5,016.14 and 1,395.54 is: 2,093.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,343.78 : 5,016.14 = 1,395.54 : x
  2. Step 2: Convert to fraction form
    3,343.78/5,016.14 = 1,395.54/x
  3. Step 3: Cross multiply
    3,343.78x = 5,016.14 × 1,395.54
  4. Step 4: Simplify right side
    3,343.78x = 7,000,224.02
  5. Step 5: Solve for x
    x = 7,000,224.02/3,343.78
  6. Step 6: Final answer
    x = 2,093.51

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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.