Home / 5,201.28-7,801.92-2,125.44

Finding the Fourth Proportional to 5,201.28, 7,801.92 and 2,125.44

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Solution

The fourth proportional to 5,201.28, 7,801.92 and 2,125.44 is: 3,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,201.28 : 7,801.92 = 2,125.44 : x
  2. Step 2: Convert to fraction form
    5,201.28/7,801.92 = 2,125.44/x
  3. Step 3: Cross multiply
    5,201.28x = 7,801.92 × 2,125.44
  4. Step 4: Simplify right side
    5,201.28x = 16,582,512.84
  5. Step 5: Solve for x
    x = 16,582,512.84/5,201.28
  6. Step 6: Final answer
    x = 3,188.16

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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.