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Finding the Fourth Proportional to 6,819.99, 10,230.20 and 1,889.67

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Solution

The fourth proportional to 6,819.99, 10,230.20 and 1,889.67 is: 2,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.99 : 10,230.20 = 1,889.67 : x
  2. Step 2: Convert to fraction form
    6,819.99/10,230.20 = 1,889.67/x
  3. Step 3: Cross multiply
    6,819.99x = 10,230.20 × 1,889.67
  4. Step 4: Simplify right side
    6,819.99x = 19,331,702.03
  5. Step 5: Solve for x
    x = 19,331,702.03/6,819.99
  6. Step 6: Final answer
    x = 2,834.56

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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.