Home / 4,259.82-6,389.19-3,165.78

Finding the Fourth Proportional to 4,259.82, 6,389.19 and 3,165.78

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Solution

The fourth proportional to 4,259.82, 6,389.19 and 3,165.78 is: 4,748.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.82 : 6,389.19 = 3,165.78 : x
  2. Step 2: Convert to fraction form
    4,259.82/6,389.19 = 3,165.78/x
  3. Step 3: Cross multiply
    4,259.82x = 6,389.19 × 3,165.78
  4. Step 4: Simplify right side
    4,259.82x = 20,226,769.92
  5. Step 5: Solve for x
    x = 20,226,769.92/4,259.82
  6. Step 6: Final answer
    x = 4,748.27

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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.