Home / 3,656.20-5,476.20-2,831.80

Finding the Fourth Proportional to 3,656.20, 5,476.20 and 2,831.80

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Solution

The fourth proportional to 3,656.20, 5,476.20 and 2,831.80 is: 4,241.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.20 : 5,476.20 = 2,831.80 : x
  2. Step 2: Convert to fraction form
    3,656.20/5,476.20 = 2,831.80/x
  3. Step 3: Cross multiply
    3,656.20x = 5,476.20 × 2,831.80
  4. Step 4: Simplify right side
    3,656.20x = 15,507,503.16
  5. Step 5: Solve for x
    x = 15,507,503.16/3,656.20
  6. Step 6: Final answer
    x = 4,241.43

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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.