Home / 5,231.39-7,216.30-3,134.30

Finding the Fourth Proportional to 5,231.39, 7,216.30 and 3,134.30

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Solution

The fourth proportional to 5,231.39, 7,216.30 and 3,134.30 is: 4,323.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.39 : 7,216.30 = 3,134.30 : x
  2. Step 2: Convert to fraction form
    5,231.39/7,216.30 = 3,134.30/x
  3. Step 3: Cross multiply
    5,231.39x = 7,216.30 × 3,134.30
  4. Step 4: Simplify right side
    5,231.39x = 22,618,049.09
  5. Step 5: Solve for x
    x = 22,618,049.09/5,231.39
  6. Step 6: Final answer
    x = 4,323.53

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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.