Home / 5,115.91-7,672.44-2,193.52

Finding the Fourth Proportional to 5,115.91, 7,672.44 and 2,193.52

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Solution

The fourth proportional to 5,115.91, 7,672.44 and 2,193.52 is: 3,289.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.91 : 7,672.44 = 2,193.52 : x
  2. Step 2: Convert to fraction form
    5,115.91/7,672.44 = 2,193.52/x
  3. Step 3: Cross multiply
    5,115.91x = 7,672.44 × 2,193.52
  4. Step 4: Simplify right side
    5,115.91x = 16,829,650.59
  5. Step 5: Solve for x
    x = 16,829,650.59/5,115.91
  6. Step 6: Final answer
    x = 3,289.67

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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.