Home / 2,079.96-3,119.67-1,105.26

Finding the Fourth Proportional to 2,079.96, 3,119.67 and 1,105.26

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Solution

The fourth proportional to 2,079.96, 3,119.67 and 1,105.26 is: 1,657.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.96 : 3,119.67 = 1,105.26 : x
  2. Step 2: Convert to fraction form
    2,079.96/3,119.67 = 1,105.26/x
  3. Step 3: Cross multiply
    2,079.96x = 3,119.67 × 1,105.26
  4. Step 4: Simplify right side
    2,079.96x = 3,448,046.46
  5. Step 5: Solve for x
    x = 3,448,046.46/2,079.96
  6. Step 6: Final answer
    x = 1,657.75

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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.