Home / 3,821.20-5,704.10-3,551.12

Finding the Fourth Proportional to 3,821.20, 5,704.10 and 3,551.12

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Solution

The fourth proportional to 3,821.20, 5,704.10 and 3,551.12 is: 5,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.20 : 5,704.10 = 3,551.12 : x
  2. Step 2: Convert to fraction form
    3,821.20/5,704.10 = 3,551.12/x
  3. Step 3: Cross multiply
    3,821.20x = 5,704.10 × 3,551.12
  4. Step 4: Simplify right side
    3,821.20x = 20,255,943.59
  5. Step 5: Solve for x
    x = 20,255,943.59/3,821.20
  6. Step 6: Final answer
    x = 5,300.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.