Home / 6,213.89-9,318.09-3,291.51

Finding the Fourth Proportional to 6,213.89, 9,318.09 and 3,291.51

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Solution

The fourth proportional to 6,213.89, 9,318.09 and 3,291.51 is: 4,935.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,213.89 : 9,318.09 = 3,291.51 : x
  2. Step 2: Convert to fraction form
    6,213.89/9,318.09 = 3,291.51/x
  3. Step 3: Cross multiply
    6,213.89x = 9,318.09 × 3,291.51
  4. Step 4: Simplify right side
    6,213.89x = 30,670,586.42
  5. Step 5: Solve for x
    x = 30,670,586.42/6,213.89
  6. Step 6: Final answer
    x = 4,935.81

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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.