Home / 3,897.20-5,847.61-2,255.12

Finding the Fourth Proportional to 3,897.20, 5,847.61 and 2,255.12

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Solution

The fourth proportional to 3,897.20, 5,847.61 and 2,255.12 is: 3,383.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.20 : 5,847.61 = 2,255.12 : x
  2. Step 2: Convert to fraction form
    3,897.20/5,847.61 = 2,255.12/x
  3. Step 3: Cross multiply
    3,897.20x = 5,847.61 × 2,255.12
  4. Step 4: Simplify right side
    3,897.20x = 13,187,071.24
  5. Step 5: Solve for x
    x = 13,187,071.24/3,897.20
  6. Step 6: Final answer
    x = 3,383.73

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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.