Home / 2,194.83-3,289.95-961.20

Finding the Fourth Proportional to 2,194.83, 3,289.95 and 961.20

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Solution

The fourth proportional to 2,194.83, 3,289.95 and 961.20 is: 1,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.83 : 3,289.95 = 961.20 : x
  2. Step 2: Convert to fraction form
    2,194.83/3,289.95 = 961.20/x
  3. Step 3: Cross multiply
    2,194.83x = 3,289.95 × 961.20
  4. Step 4: Simplify right side
    2,194.83x = 3,162,299.94
  5. Step 5: Solve for x
    x = 3,162,299.94/2,194.83
  6. Step 6: Final answer
    x = 1,440.79

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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.