Home / 3,784.21-5,222.38-3,153.68

Finding the Fourth Proportional to 3,784.21, 5,222.38 and 3,153.68

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Solution

The fourth proportional to 3,784.21, 5,222.38 and 3,153.68 is: 4,352.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.21 : 5,222.38 = 3,153.68 : x
  2. Step 2: Convert to fraction form
    3,784.21/5,222.38 = 3,153.68/x
  3. Step 3: Cross multiply
    3,784.21x = 5,222.38 × 3,153.68
  4. Step 4: Simplify right side
    3,784.21x = 16,469,721.55
  5. Step 5: Solve for x
    x = 16,469,721.55/3,784.21
  6. Step 6: Final answer
    x = 4,352.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.