Home / 3,829.68-5,281.20-3,201.12

Finding the Fourth Proportional to 3,829.68, 5,281.20 and 3,201.12

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Solution

The fourth proportional to 3,829.68, 5,281.20 and 3,201.12 is: 4,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.68 : 5,281.20 = 3,201.12 : x
  2. Step 2: Convert to fraction form
    3,829.68/5,281.20 = 3,201.12/x
  3. Step 3: Cross multiply
    3,829.68x = 5,281.20 × 3,201.12
  4. Step 4: Simplify right side
    3,829.68x = 16,905,754.94
  5. Step 5: Solve for x
    x = 16,905,754.94/3,829.68
  6. Step 6: Final answer
    x = 4,414.40

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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.