Home / 3,139.24-4,330.92-2,194.80

Finding the Fourth Proportional to 3,139.24, 4,330.92 and 2,194.80

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Solution

The fourth proportional to 3,139.24, 4,330.92 and 2,194.80 is: 3,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.24 : 4,330.92 = 2,194.80 : x
  2. Step 2: Convert to fraction form
    3,139.24/4,330.92 = 2,194.80/x
  3. Step 3: Cross multiply
    3,139.24x = 4,330.92 × 2,194.80
  4. Step 4: Simplify right side
    3,139.24x = 9,505,503.22
  5. Step 5: Solve for x
    x = 9,505,503.22/3,139.24
  6. Step 6: Final answer
    x = 3,027.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.