Home / 6,864.78-10,291.50-3,163.89

Finding the Fourth Proportional to 6,864.78, 10,291.50 and 3,163.89

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Solution

The fourth proportional to 6,864.78, 10,291.50 and 3,163.89 is: 4,743.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.78 : 10,291.50 = 3,163.89 : x
  2. Step 2: Convert to fraction form
    6,864.78/10,291.50 = 3,163.89/x
  3. Step 3: Cross multiply
    6,864.78x = 10,291.50 × 3,163.89
  4. Step 4: Simplify right side
    6,864.78x = 32,561,173.94
  5. Step 5: Solve for x
    x = 32,561,173.94/6,864.78
  6. Step 6: Final answer
    x = 4,743.22

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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.