Home / 3,604.48-5,406.92-1,138.64

Finding the Fourth Proportional to 3,604.48, 5,406.92 and 1,138.64

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Solution

The fourth proportional to 3,604.48, 5,406.92 and 1,138.64 is: 1,708.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.48 : 5,406.92 = 1,138.64 : x
  2. Step 2: Convert to fraction form
    3,604.48/5,406.92 = 1,138.64/x
  3. Step 3: Cross multiply
    3,604.48x = 5,406.92 × 1,138.64
  4. Step 4: Simplify right side
    3,604.48x = 6,156,535.39
  5. Step 5: Solve for x
    x = 6,156,535.39/3,604.48
  6. Step 6: Final answer
    x = 1,708.02

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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.