Home / 3,980.37-5,493.08-2,211.96

Finding the Fourth Proportional to 3,980.37, 5,493.08 and 2,211.96

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Solution

The fourth proportional to 3,980.37, 5,493.08 and 2,211.96 is: 3,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.37 : 5,493.08 = 2,211.96 : x
  2. Step 2: Convert to fraction form
    3,980.37/5,493.08 = 2,211.96/x
  3. Step 3: Cross multiply
    3,980.37x = 5,493.08 × 2,211.96
  4. Step 4: Simplify right side
    3,980.37x = 12,150,473.24
  5. Step 5: Solve for x
    x = 12,150,473.24/3,980.37
  6. Step 6: Final answer
    x = 3,052.60

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1.5x scale

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.