Home / 3,110.34-4,665.32-1,378.38

Finding the Fourth Proportional to 3,110.34, 4,665.32 and 1,378.38

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Solution

The fourth proportional to 3,110.34, 4,665.32 and 1,378.38 is: 2,067.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.34 : 4,665.32 = 1,378.38 : x
  2. Step 2: Convert to fraction form
    3,110.34/4,665.32 = 1,378.38/x
  3. Step 3: Cross multiply
    3,110.34x = 4,665.32 × 1,378.38
  4. Step 4: Simplify right side
    3,110.34x = 6,430,583.78
  5. Step 5: Solve for x
    x = 6,430,583.78/3,110.34
  6. Step 6: Final answer
    x = 2,067.49

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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.