Home / 6,911.20-10,367.40-2,231.68

Finding the Fourth Proportional to 6,911.20, 10,367.40 and 2,231.68

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Solution

The fourth proportional to 6,911.20, 10,367.40 and 2,231.68 is: 3,347.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.20 : 10,367.40 = 2,231.68 : x
  2. Step 2: Convert to fraction form
    6,911.20/10,367.40 = 2,231.68/x
  3. Step 3: Cross multiply
    6,911.20x = 10,367.40 × 2,231.68
  4. Step 4: Simplify right side
    6,911.20x = 23,136,719.23
  5. Step 5: Solve for x
    x = 23,136,719.23/6,911.20
  6. Step 6: Final answer
    x = 3,347.71

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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.