Home / 5,289.20-7,930.61-2,792.37

Finding the Fourth Proportional to 5,289.20, 7,930.61 and 2,792.37

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Solution

The fourth proportional to 5,289.20, 7,930.61 and 2,792.37 is: 4,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.20 : 7,930.61 = 2,792.37 : x
  2. Step 2: Convert to fraction form
    5,289.20/7,930.61 = 2,792.37/x
  3. Step 3: Cross multiply
    5,289.20x = 7,930.61 × 2,792.37
  4. Step 4: Simplify right side
    5,289.20x = 22,145,223.70
  5. Step 5: Solve for x
    x = 22,145,223.70/5,289.20
  6. Step 6: Final answer
    x = 4,186.88

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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.