Home / 3,623.44-5,422.20-3,138.16

Finding the Fourth Proportional to 3,623.44, 5,422.20 and 3,138.16

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Solution

The fourth proportional to 3,623.44, 5,422.20 and 3,138.16 is: 4,696.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.44 : 5,422.20 = 3,138.16 : x
  2. Step 2: Convert to fraction form
    3,623.44/5,422.20 = 3,138.16/x
  3. Step 3: Cross multiply
    3,623.44x = 5,422.20 × 3,138.16
  4. Step 4: Simplify right side
    3,623.44x = 17,015,731.15
  5. Step 5: Solve for x
    x = 17,015,731.15/3,623.44
  6. Step 6: Final answer
    x = 4,696.02

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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.