Home / 3,245.64-4,873.97-2,121.76

Finding the Fourth Proportional to 3,245.64, 4,873.97 and 2,121.76

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Solution

The fourth proportional to 3,245.64, 4,873.97 and 2,121.76 is: 3,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.64 : 4,873.97 = 2,121.76 : x
  2. Step 2: Convert to fraction form
    3,245.64/4,873.97 = 2,121.76/x
  3. Step 3: Cross multiply
    3,245.64x = 4,873.97 × 2,121.76
  4. Step 4: Simplify right side
    3,245.64x = 10,341,394.59
  5. Step 5: Solve for x
    x = 10,341,394.59/3,245.64
  6. Step 6: Final answer
    x = 3,186.24

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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.