Home / 3,383.20-5,071.92-1,190.80

Finding the Fourth Proportional to 3,383.20, 5,071.92 and 1,190.80

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Solution

The fourth proportional to 3,383.20, 5,071.92 and 1,190.80 is: 1,785.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.20 : 5,071.92 = 1,190.80 : x
  2. Step 2: Convert to fraction form
    3,383.20/5,071.92 = 1,190.80/x
  3. Step 3: Cross multiply
    3,383.20x = 5,071.92 × 1,190.80
  4. Step 4: Simplify right side
    3,383.20x = 6,039,642.34
  5. Step 5: Solve for x
    x = 6,039,642.34/3,383.20
  6. Step 6: Final answer
    x = 1,785.19

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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.