Home / 3,967.25-5,474.81-2,199.12

Finding the Fourth Proportional to 3,967.25, 5,474.81 and 2,199.12

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Solution

The fourth proportional to 3,967.25, 5,474.81 and 2,199.12 is: 3,034.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.25 : 5,474.81 = 2,199.12 : x
  2. Step 2: Convert to fraction form
    3,967.25/5,474.81 = 2,199.12/x
  3. Step 3: Cross multiply
    3,967.25x = 5,474.81 × 2,199.12
  4. Step 4: Simplify right side
    3,967.25x = 12,039,753.17
  5. Step 5: Solve for x
    x = 12,039,753.17/3,967.25
  6. Step 6: Final answer
    x = 3,034.79

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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.