Home / 5,627.81-8,429.13-3,979.33

Finding the Fourth Proportional to 5,627.81, 8,429.13 and 3,979.33

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Solution

The fourth proportional to 5,627.81, 8,429.13 and 3,979.33 is: 5,960.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.81 : 8,429.13 = 3,979.33 : x
  2. Step 2: Convert to fraction form
    5,627.81/8,429.13 = 3,979.33/x
  3. Step 3: Cross multiply
    5,627.81x = 8,429.13 × 3,979.33
  4. Step 4: Simplify right side
    5,627.81x = 33,542,268.81
  5. Step 5: Solve for x
    x = 33,542,268.81/5,627.81
  6. Step 6: Final answer
    x = 5,960.09

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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.