Home / 3,414.63-5,112.36-2,178.96

Finding the Fourth Proportional to 3,414.63, 5,112.36 and 2,178.96

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Solution

The fourth proportional to 3,414.63, 5,112.36 and 2,178.96 is: 3,262.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.63 : 5,112.36 = 2,178.96 : x
  2. Step 2: Convert to fraction form
    3,414.63/5,112.36 = 2,178.96/x
  3. Step 3: Cross multiply
    3,414.63x = 5,112.36 × 2,178.96
  4. Step 4: Simplify right side
    3,414.63x = 11,139,627.95
  5. Step 5: Solve for x
    x = 11,139,627.95/3,414.63
  6. Step 6: Final answer
    x = 3,262.32

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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.