Home / 3,638.77-5,453.07-3,198.94

Finding the Fourth Proportional to 3,638.77, 5,453.07 and 3,198.94

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Solution

The fourth proportional to 3,638.77, 5,453.07 and 3,198.94 is: 4,793.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.77 : 5,453.07 = 3,198.94 : x
  2. Step 2: Convert to fraction form
    3,638.77/5,453.07 = 3,198.94/x
  3. Step 3: Cross multiply
    3,638.77x = 5,453.07 × 3,198.94
  4. Step 4: Simplify right side
    3,638.77x = 17,444,066.78
  5. Step 5: Solve for x
    x = 17,444,066.78/3,638.77
  6. Step 6: Final answer
    x = 4,793.94

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1.5x scale

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.