Home / 3,930.08-5,421.98-2,250.60

Finding the Fourth Proportional to 3,930.08, 5,421.98 and 2,250.60

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Solution

The fourth proportional to 3,930.08, 5,421.98 and 2,250.60 is: 3,104.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.08 : 5,421.98 = 2,250.60 : x
  2. Step 2: Convert to fraction form
    3,930.08/5,421.98 = 2,250.60/x
  3. Step 3: Cross multiply
    3,930.08x = 5,421.98 × 2,250.60
  4. Step 4: Simplify right side
    3,930.08x = 12,202,708.19
  5. Step 5: Solve for x
    x = 12,202,708.19/3,930.08
  6. Step 6: Final answer
    x = 3,104.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.