Home / 5,418.63-7,477.79-3,028.86

Finding the Fourth Proportional to 5,418.63, 7,477.79 and 3,028.86

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Solution

The fourth proportional to 5,418.63, 7,477.79 and 3,028.86 is: 4,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.63 : 7,477.79 = 3,028.86 : x
  2. Step 2: Convert to fraction form
    5,418.63/7,477.79 = 3,028.86/x
  3. Step 3: Cross multiply
    5,418.63x = 7,477.79 × 3,028.86
  4. Step 4: Simplify right side
    5,418.63x = 22,649,163.88
  5. Step 5: Solve for x
    x = 22,649,163.88/5,418.63
  6. Step 6: Final answer
    x = 4,179.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.