Home / 2,161.08-3,233.70-1,339.80

Finding the Fourth Proportional to 2,161.08, 3,233.70 and 1,339.80

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Solution

The fourth proportional to 2,161.08, 3,233.70 and 1,339.80 is: 2,004.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.08 : 3,233.70 = 1,339.80 : x
  2. Step 2: Convert to fraction form
    2,161.08/3,233.70 = 1,339.80/x
  3. Step 3: Cross multiply
    2,161.08x = 3,233.70 × 1,339.80
  4. Step 4: Simplify right side
    2,161.08x = 4,332,511.26
  5. Step 5: Solve for x
    x = 4,332,511.26/2,161.08
  6. Step 6: Final answer
    x = 2,004.79

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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.