Home / 4,939.41-7,399.36-2,858.12

Finding the Fourth Proportional to 4,939.41, 7,399.36 and 2,858.12

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Solution

The fourth proportional to 4,939.41, 7,399.36 and 2,858.12 is: 4,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.41 : 7,399.36 = 2,858.12 : x
  2. Step 2: Convert to fraction form
    4,939.41/7,399.36 = 2,858.12/x
  3. Step 3: Cross multiply
    4,939.41x = 7,399.36 × 2,858.12
  4. Step 4: Simplify right side
    4,939.41x = 21,148,258.80
  5. Step 5: Solve for x
    x = 21,148,258.80/4,939.41
  6. Step 6: Final answer
    x = 4,281.54

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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.