Home / 6,749.68-10,123.80-1,819.82

Finding the Fourth Proportional to 6,749.68, 10,123.80 and 1,819.82

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Solution

The fourth proportional to 6,749.68, 10,123.80 and 1,819.82 is: 2,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.68 : 10,123.80 = 1,819.82 : x
  2. Step 2: Convert to fraction form
    6,749.68/10,123.80 = 1,819.82/x
  3. Step 3: Cross multiply
    6,749.68x = 10,123.80 × 1,819.82
  4. Step 4: Simplify right side
    6,749.68x = 18,423,493.72
  5. Step 5: Solve for x
    x = 18,423,493.72/6,749.68
  6. Step 6: Final answer
    x = 2,729.54

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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.