Home / 3,069.92-4,236.68-1,811.72

Finding the Fourth Proportional to 3,069.92, 4,236.68 and 1,811.72

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Solution

The fourth proportional to 3,069.92, 4,236.68 and 1,811.72 is: 2,500.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.92 : 4,236.68 = 1,811.72 : x
  2. Step 2: Convert to fraction form
    3,069.92/4,236.68 = 1,811.72/x
  3. Step 3: Cross multiply
    3,069.92x = 4,236.68 × 1,811.72
  4. Step 4: Simplify right side
    3,069.92x = 7,675,677.89
  5. Step 5: Solve for x
    x = 7,675,677.89/3,069.92
  6. Step 6: Final answer
    x = 2,500.29

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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.