Home / 3,983.57-5,975.24-1,905.04

Finding the Fourth Proportional to 3,983.57, 5,975.24 and 1,905.04

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Solution

The fourth proportional to 3,983.57, 5,975.24 and 1,905.04 is: 2,857.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.57 : 5,975.24 = 1,905.04 : x
  2. Step 2: Convert to fraction form
    3,983.57/5,975.24 = 1,905.04/x
  3. Step 3: Cross multiply
    3,983.57x = 5,975.24 × 1,905.04
  4. Step 4: Simplify right side
    3,983.57x = 11,383,071.21
  5. Step 5: Solve for x
    x = 11,383,071.21/3,983.57
  6. Step 6: Final answer
    x = 2,857.51

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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.