Home / 3,311.25-4,569.65-1,819.31

Finding the Fourth Proportional to 3,311.25, 4,569.65 and 1,819.31

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Solution

The fourth proportional to 3,311.25, 4,569.65 and 1,819.31 is: 2,510.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.25 : 4,569.65 = 1,819.31 : x
  2. Step 2: Convert to fraction form
    3,311.25/4,569.65 = 1,819.31/x
  3. Step 3: Cross multiply
    3,311.25x = 4,569.65 × 1,819.31
  4. Step 4: Simplify right side
    3,311.25x = 8,313,609.94
  5. Step 5: Solve for x
    x = 8,313,609.94/3,311.25
  6. Step 6: Final answer
    x = 2,510.72

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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.