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Finding the Fourth Proportional to 6,819.71, 10,228.43 and 1,889.85

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Solution

The fourth proportional to 6,819.71, 10,228.43 and 1,889.85 is: 2,834.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.71 : 10,228.43 = 1,889.85 : x
  2. Step 2: Convert to fraction form
    6,819.71/10,228.43 = 1,889.85/x
  3. Step 3: Cross multiply
    6,819.71x = 10,228.43 × 1,889.85
  4. Step 4: Simplify right side
    6,819.71x = 19,330,198.44
  5. Step 5: Solve for x
    x = 19,330,198.44/6,819.71
  6. Step 6: Final answer
    x = 2,834.46

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1.5x scale

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.