Home / 3,418.56-5,127.72-1,110

Finding the Fourth Proportional to 3,418.56, 5,127.72 and 1,110

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Solution

The fourth proportional to 3,418.56, 5,127.72 and 1,110 is: 1,664.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.56 : 5,127.72 = 1,110 : x
  2. Step 2: Convert to fraction form
    3,418.56/5,127.72 = 1,110/x
  3. Step 3: Cross multiply
    3,418.56x = 5,127.72 × 1,110
  4. Step 4: Simplify right side
    3,418.56x = 5,691,769.20
  5. Step 5: Solve for x
    x = 5,691,769.20/3,418.56
  6. Step 6: Final answer
    x = 1,664.96

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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.