Home / 3,551.45-5,327.20-1,086.28

Finding the Fourth Proportional to 3,551.45, 5,327.20 and 1,086.28

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Solution

The fourth proportional to 3,551.45, 5,327.20 and 1,086.28 is: 1,629.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.45 : 5,327.20 = 1,086.28 : x
  2. Step 2: Convert to fraction form
    3,551.45/5,327.20 = 1,086.28/x
  3. Step 3: Cross multiply
    3,551.45x = 5,327.20 × 1,086.28
  4. Step 4: Simplify right side
    3,551.45x = 5,786,818.86
  5. Step 5: Solve for x
    x = 5,786,818.86/3,551.45
  6. Step 6: Final answer
    x = 1,629.43

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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.