Home / 3,189.30-4,785.21-1,433.82

Finding the Fourth Proportional to 3,189.30, 4,785.21 and 1,433.82

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Solution

The fourth proportional to 3,189.30, 4,785.21 and 1,433.82 is: 2,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.30 : 4,785.21 = 1,433.82 : x
  2. Step 2: Convert to fraction form
    3,189.30/4,785.21 = 1,433.82/x
  3. Step 3: Cross multiply
    3,189.30x = 4,785.21 × 1,433.82
  4. Step 4: Simplify right side
    3,189.30x = 6,861,129.80
  5. Step 5: Solve for x
    x = 6,861,129.80/3,189.30
  6. Step 6: Final answer
    x = 2,151.30

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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.