Home / 7,221.82-10,831.56-2,026.48

Finding the Fourth Proportional to 7,221.82, 10,831.56 and 2,026.48

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Solution

The fourth proportional to 7,221.82, 10,831.56 and 2,026.48 is: 3,039.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.82 : 10,831.56 = 2,026.48 : x
  2. Step 2: Convert to fraction form
    7,221.82/10,831.56 = 2,026.48/x
  3. Step 3: Cross multiply
    7,221.82x = 10,831.56 × 2,026.48
  4. Step 4: Simplify right side
    7,221.82x = 21,949,939.71
  5. Step 5: Solve for x
    x = 21,949,939.71/7,221.82
  6. Step 6: Final answer
    x = 3,039.39

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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.