Home / 7,749.92-11,624.79-1,906.58

Finding the Fourth Proportional to 7,749.92, 11,624.79 and 1,906.58

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Solution

The fourth proportional to 7,749.92, 11,624.79 and 1,906.58 is: 2,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.92 : 11,624.79 = 1,906.58 : x
  2. Step 2: Convert to fraction form
    7,749.92/11,624.79 = 1,906.58/x
  3. Step 3: Cross multiply
    7,749.92x = 11,624.79 × 1,906.58
  4. Step 4: Simplify right side
    7,749.92x = 22,163,592.12
  5. Step 5: Solve for x
    x = 22,163,592.12/7,749.92
  6. Step 6: Final answer
    x = 2,859.85

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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.