Home / 5,777.20-8,660.22-3,691.36

Finding the Fourth Proportional to 5,777.20, 8,660.22 and 3,691.36

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Solution

The fourth proportional to 5,777.20, 8,660.22 and 3,691.36 is: 5,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.20 : 8,660.22 = 3,691.36 : x
  2. Step 2: Convert to fraction form
    5,777.20/8,660.22 = 3,691.36/x
  3. Step 3: Cross multiply
    5,777.20x = 8,660.22 × 3,691.36
  4. Step 4: Simplify right side
    5,777.20x = 31,967,989.70
  5. Step 5: Solve for x
    x = 31,967,989.70/5,777.20
  6. Step 6: Final answer
    x = 5,533.47

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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.