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Finding the Fourth Proportional to 3,984.05, 5,976.07 and 1,210.73

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Solution

The fourth proportional to 3,984.05, 5,976.07 and 1,210.73 is: 1,816.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.05 : 5,976.07 = 1,210.73 : x
  2. Step 2: Convert to fraction form
    3,984.05/5,976.07 = 1,210.73/x
  3. Step 3: Cross multiply
    3,984.05x = 5,976.07 × 1,210.73
  4. Step 4: Simplify right side
    3,984.05x = 7,235,401.18
  5. Step 5: Solve for x
    x = 7,235,401.18/3,984.05
  6. Step 6: Final answer
    x = 1,816.09

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Similar ratio
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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.