Home / 3,220.68-4,831.74-1,371.87

Finding the Fourth Proportional to 3,220.68, 4,831.74 and 1,371.87

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Solution

The fourth proportional to 3,220.68, 4,831.74 and 1,371.87 is: 2,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.68 : 4,831.74 = 1,371.87 : x
  2. Step 2: Convert to fraction form
    3,220.68/4,831.74 = 1,371.87/x
  3. Step 3: Cross multiply
    3,220.68x = 4,831.74 × 1,371.87
  4. Step 4: Simplify right side
    3,220.68x = 6,628,519.15
  5. Step 5: Solve for x
    x = 6,628,519.15/3,220.68
  6. Step 6: Final answer
    x = 2,058.11

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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.