Home / 2,869.92-3,960.50-1,611

Finding the Fourth Proportional to 2,869.92, 3,960.50 and 1,611

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Solution

The fourth proportional to 2,869.92, 3,960.50 and 1,611 is: 2,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.92 : 3,960.50 = 1,611 : x
  2. Step 2: Convert to fraction form
    2,869.92/3,960.50 = 1,611/x
  3. Step 3: Cross multiply
    2,869.92x = 3,960.50 × 1,611
  4. Step 4: Simplify right side
    2,869.92x = 6,380,357.45
  5. Step 5: Solve for x
    x = 6,380,357.45/2,869.92
  6. Step 6: Final answer
    x = 2,223.18

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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.