Home / 3,418.46-5,127.87-1,078.53

Finding the Fourth Proportional to 3,418.46, 5,127.87 and 1,078.53

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Solution

The fourth proportional to 3,418.46, 5,127.87 and 1,078.53 is: 1,617.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.46 : 5,127.87 = 1,078.53 : x
  2. Step 2: Convert to fraction form
    3,418.46/5,127.87 = 1,078.53/x
  3. Step 3: Cross multiply
    3,418.46x = 5,127.87 × 1,078.53
  4. Step 4: Simplify right side
    3,418.46x = 5,530,561.63
  5. Step 5: Solve for x
    x = 5,530,561.63/3,418.46
  6. Step 6: Final answer
    x = 1,617.85

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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.