Home / 5,231.08-7,218.83-3,107.65

Finding the Fourth Proportional to 5,231.08, 7,218.83 and 3,107.65

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Solution

The fourth proportional to 5,231.08, 7,218.83 and 3,107.65 is: 4,288.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.08 : 7,218.83 = 3,107.65 : x
  2. Step 2: Convert to fraction form
    5,231.08/7,218.83 = 3,107.65/x
  3. Step 3: Cross multiply
    5,231.08x = 7,218.83 × 3,107.65
  4. Step 4: Simplify right side
    5,231.08x = 22,433,560.96
  5. Step 5: Solve for x
    x = 22,433,560.96/5,231.08
  6. Step 6: Final answer
    x = 4,288.52

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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.