Home / 2,161.96-3,242.46-1,296.04

Finding the Fourth Proportional to 2,161.96, 3,242.46 and 1,296.04

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Solution

The fourth proportional to 2,161.96, 3,242.46 and 1,296.04 is: 1,943.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.96 : 3,242.46 = 1,296.04 : x
  2. Step 2: Convert to fraction form
    2,161.96/3,242.46 = 1,296.04/x
  3. Step 3: Cross multiply
    2,161.96x = 3,242.46 × 1,296.04
  4. Step 4: Simplify right side
    2,161.96x = 4,202,357.86
  5. Step 5: Solve for x
    x = 4,202,357.86/2,161.96
  6. Step 6: Final answer
    x = 1,943.77

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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.