Home / 3,168.54-4,753.62-1,321.08

Finding the Fourth Proportional to 3,168.54, 4,753.62 and 1,321.08

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Solution

The fourth proportional to 3,168.54, 4,753.62 and 1,321.08 is: 1,981.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.54 : 4,753.62 = 1,321.08 : x
  2. Step 2: Convert to fraction form
    3,168.54/4,753.62 = 1,321.08/x
  3. Step 3: Cross multiply
    3,168.54x = 4,753.62 × 1,321.08
  4. Step 4: Simplify right side
    3,168.54x = 6,279,912.31
  5. Step 5: Solve for x
    x = 6,279,912.31/3,168.54
  6. Step 6: Final answer
    x = 1,981.96

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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.