Home / 3,819.12-5,270.52-2,247.12

Finding the Fourth Proportional to 3,819.12, 5,270.52 and 2,247.12

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Solution

The fourth proportional to 3,819.12, 5,270.52 and 2,247.12 is: 3,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.12 : 5,270.52 = 2,247.12 : x
  2. Step 2: Convert to fraction form
    3,819.12/5,270.52 = 2,247.12/x
  3. Step 3: Cross multiply
    3,819.12x = 5,270.52 × 2,247.12
  4. Step 4: Simplify right side
    3,819.12x = 11,843,490.90
  5. Step 5: Solve for x
    x = 11,843,490.90/3,819.12
  6. Step 6: Final answer
    x = 3,101.10

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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.