Home / 5,521.74-7,619.78-3,163.43

Finding the Fourth Proportional to 5,521.74, 7,619.78 and 3,163.43

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Solution

The fourth proportional to 5,521.74, 7,619.78 and 3,163.43 is: 4,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.74 : 7,619.78 = 3,163.43 : x
  2. Step 2: Convert to fraction form
    5,521.74/7,619.78 = 3,163.43/x
  3. Step 3: Cross multiply
    5,521.74x = 7,619.78 × 3,163.43
  4. Step 4: Simplify right side
    5,521.74x = 24,104,586.73
  5. Step 5: Solve for x
    x = 24,104,586.73/5,521.74
  6. Step 6: Final answer
    x = 4,365.40

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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.