Home / 5,389.26-8,083.81-2,939.68

Finding the Fourth Proportional to 5,389.26, 8,083.81 and 2,939.68

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Solution

The fourth proportional to 5,389.26, 8,083.81 and 2,939.68 is: 4,409.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.26 : 8,083.81 = 2,939.68 : x
  2. Step 2: Convert to fraction form
    5,389.26/8,083.81 = 2,939.68/x
  3. Step 3: Cross multiply
    5,389.26x = 8,083.81 × 2,939.68
  4. Step 4: Simplify right side
    5,389.26x = 23,763,814.58
  5. Step 5: Solve for x
    x = 23,763,814.58/5,389.26
  6. Step 6: Final answer
    x = 4,409.48

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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.