Home / 7,110.20-10,664.55-2,179.86

Finding the Fourth Proportional to 7,110.20, 10,664.55 and 2,179.86

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Solution

The fourth proportional to 7,110.20, 10,664.55 and 2,179.86 is: 3,269.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.20 : 10,664.55 = 2,179.86 : x
  2. Step 2: Convert to fraction form
    7,110.20/10,664.55 = 2,179.86/x
  3. Step 3: Cross multiply
    7,110.20x = 10,664.55 × 2,179.86
  4. Step 4: Simplify right side
    7,110.20x = 23,247,225.96
  5. Step 5: Solve for x
    x = 23,247,225.96/7,110.20
  6. Step 6: Final answer
    x = 3,269.56

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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.