Home / 6,811.90-10,218.24-2,132.56

Finding the Fourth Proportional to 6,811.90, 10,218.24 and 2,132.56

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Solution

The fourth proportional to 6,811.90, 10,218.24 and 2,132.56 is: 3,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.90 : 10,218.24 = 2,132.56 : x
  2. Step 2: Convert to fraction form
    6,811.90/10,218.24 = 2,132.56/x
  3. Step 3: Cross multiply
    6,811.90x = 10,218.24 × 2,132.56
  4. Step 4: Simplify right side
    6,811.90x = 21,791,009.89
  5. Step 5: Solve for x
    x = 21,791,009.89/6,811.90
  6. Step 6: Final answer
    x = 3,198.96

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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.