Home / 5,472.11-8,212.26-3,890.63

Finding the Fourth Proportional to 5,472.11, 8,212.26 and 3,890.63

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Solution

The fourth proportional to 5,472.11, 8,212.26 and 3,890.63 is: 5,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472.11 : 8,212.26 = 3,890.63 : x
  2. Step 2: Convert to fraction form
    5,472.11/8,212.26 = 3,890.63/x
  3. Step 3: Cross multiply
    5,472.11x = 8,212.26 × 3,890.63
  4. Step 4: Simplify right side
    5,472.11x = 31,950,833.79
  5. Step 5: Solve for x
    x = 31,950,833.79/5,472.11
  6. Step 6: Final answer
    x = 5,838.86

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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.