Home / 3,948.08-5,910.60-3,118.64

Finding the Fourth Proportional to 3,948.08, 5,910.60 and 3,118.64

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Solution

The fourth proportional to 3,948.08, 5,910.60 and 3,118.64 is: 4,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.08 : 5,910.60 = 3,118.64 : x
  2. Step 2: Convert to fraction form
    3,948.08/5,910.60 = 3,118.64/x
  3. Step 3: Cross multiply
    3,948.08x = 5,910.60 × 3,118.64
  4. Step 4: Simplify right side
    3,948.08x = 18,433,033.58
  5. Step 5: Solve for x
    x = 18,433,033.58/3,948.08
  6. Step 6: Final answer
    x = 4,668.86

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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.