Home / 7,221.13-10,831.69-2,604.13

Finding the Fourth Proportional to 7,221.13, 10,831.69 and 2,604.13

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Solution

The fourth proportional to 7,221.13, 10,831.69 and 2,604.13 is: 3,906.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.13 : 10,831.69 = 2,604.13 : x
  2. Step 2: Convert to fraction form
    7,221.13/10,831.69 = 2,604.13/x
  3. Step 3: Cross multiply
    7,221.13x = 10,831.69 × 2,604.13
  4. Step 4: Simplify right side
    7,221.13x = 28,207,128.88
  5. Step 5: Solve for x
    x = 28,207,128.88/7,221.13
  6. Step 6: Final answer
    x = 3,906.19

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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.