Home / 3,209.14-4,428.60-1,811.88

Finding the Fourth Proportional to 3,209.14, 4,428.60 and 1,811.88

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Solution

The fourth proportional to 3,209.14, 4,428.60 and 1,811.88 is: 2,500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.14 : 4,428.60 = 1,811.88 : x
  2. Step 2: Convert to fraction form
    3,209.14/4,428.60 = 1,811.88/x
  3. Step 3: Cross multiply
    3,209.14x = 4,428.60 × 1,811.88
  4. Step 4: Simplify right side
    3,209.14x = 8,024,091.77
  5. Step 5: Solve for x
    x = 8,024,091.77/3,209.14
  6. Step 6: Final answer
    x = 2,500.39

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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.