Home / 3,784.20-5,222.28-2,272.52

Finding the Fourth Proportional to 3,784.20, 5,222.28 and 2,272.52

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Solution

The fourth proportional to 3,784.20, 5,222.28 and 2,272.52 is: 3,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.20 : 5,222.28 = 2,272.52 : x
  2. Step 2: Convert to fraction form
    3,784.20/5,222.28 = 2,272.52/x
  3. Step 3: Cross multiply
    3,784.20x = 5,222.28 × 2,272.52
  4. Step 4: Simplify right side
    3,784.20x = 11,867,735.75
  5. Step 5: Solve for x
    x = 11,867,735.75/3,784.20
  6. Step 6: Final answer
    x = 3,136.13

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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.