Home / 7,209.30-10,811.79-3,744.66

Finding the Fourth Proportional to 7,209.30, 10,811.79 and 3,744.66

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Solution

The fourth proportional to 7,209.30, 10,811.79 and 3,744.66 is: 5,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.30 : 10,811.79 = 3,744.66 : x
  2. Step 2: Convert to fraction form
    7,209.30/10,811.79 = 3,744.66/x
  3. Step 3: Cross multiply
    7,209.30x = 10,811.79 × 3,744.66
  4. Step 4: Simplify right side
    7,209.30x = 40,486,477.54
  5. Step 5: Solve for x
    x = 40,486,477.54/7,209.30
  6. Step 6: Final answer
    x = 5,615.87

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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.