Home / 5,418.42-8,125.44-2,644.28

Finding the Fourth Proportional to 5,418.42, 8,125.44 and 2,644.28

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Solution

The fourth proportional to 5,418.42, 8,125.44 and 2,644.28 is: 3,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.42 : 8,125.44 = 2,644.28 : x
  2. Step 2: Convert to fraction form
    5,418.42/8,125.44 = 2,644.28/x
  3. Step 3: Cross multiply
    5,418.42x = 8,125.44 × 2,644.28
  4. Step 4: Simplify right side
    5,418.42x = 21,485,897.86
  5. Step 5: Solve for x
    x = 21,485,897.86/5,418.42
  6. Step 6: Final answer
    x = 3,965.34

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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.