Home / 5,191.56-7,789.32-2,230.65

Finding the Fourth Proportional to 5,191.56, 7,789.32 and 2,230.65

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Solution

The fourth proportional to 5,191.56, 7,789.32 and 2,230.65 is: 3,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.56 : 7,789.32 = 2,230.65 : x
  2. Step 2: Convert to fraction form
    5,191.56/7,789.32 = 2,230.65/x
  3. Step 3: Cross multiply
    5,191.56x = 7,789.32 × 2,230.65
  4. Step 4: Simplify right side
    5,191.56x = 17,375,246.66
  5. Step 5: Solve for x
    x = 17,375,246.66/5,191.56
  6. Step 6: Final answer
    x = 3,346.83

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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.