Home / 2,659.21-3,989.82-1,273.16

Finding the Fourth Proportional to 2,659.21, 3,989.82 and 1,273.16

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Solution

The fourth proportional to 2,659.21, 3,989.82 and 1,273.16 is: 1,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.21 : 3,989.82 = 1,273.16 : x
  2. Step 2: Convert to fraction form
    2,659.21/3,989.82 = 1,273.16/x
  3. Step 3: Cross multiply
    2,659.21x = 3,989.82 × 1,273.16
  4. Step 4: Simplify right side
    2,659.21x = 5,079,679.23
  5. Step 5: Solve for x
    x = 5,079,679.23/2,659.21
  6. Step 6: Final answer
    x = 1,910.22

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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.