Home / 7,180.20-10,765.89-2,792.55

Finding the Fourth Proportional to 7,180.20, 10,765.89 and 2,792.55

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Solution

The fourth proportional to 7,180.20, 10,765.89 and 2,792.55 is: 4,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.20 : 10,765.89 = 2,792.55 : x
  2. Step 2: Convert to fraction form
    7,180.20/10,765.89 = 2,792.55/x
  3. Step 3: Cross multiply
    7,180.20x = 10,765.89 × 2,792.55
  4. Step 4: Simplify right side
    7,180.20x = 30,064,286.12
  5. Step 5: Solve for x
    x = 30,064,286.12/7,180.20
  6. Step 6: Final answer
    x = 4,187.11

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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.