Home / 3,939.12-5,906.61-1,746.90

Finding the Fourth Proportional to 3,939.12, 5,906.61 and 1,746.90

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Solution

The fourth proportional to 3,939.12, 5,906.61 and 1,746.90 is: 2,619.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.12 : 5,906.61 = 1,746.90 : x
  2. Step 2: Convert to fraction form
    3,939.12/5,906.61 = 1,746.90/x
  3. Step 3: Cross multiply
    3,939.12x = 5,906.61 × 1,746.90
  4. Step 4: Simplify right side
    3,939.12x = 10,318,257.01
  5. Step 5: Solve for x
    x = 10,318,257.01/3,939.12
  6. Step 6: Final answer
    x = 2,619.43

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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.