Home / 7,759.42-11,640.96-2,212.84

Finding the Fourth Proportional to 7,759.42, 11,640.96 and 2,212.84

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Solution

The fourth proportional to 7,759.42, 11,640.96 and 2,212.84 is: 3,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.42 : 11,640.96 = 2,212.84 : x
  2. Step 2: Convert to fraction form
    7,759.42/11,640.96 = 2,212.84/x
  3. Step 3: Cross multiply
    7,759.42x = 11,640.96 × 2,212.84
  4. Step 4: Simplify right side
    7,759.42x = 25,759,581.93
  5. Step 5: Solve for x
    x = 25,759,581.93/7,759.42
  6. Step 6: Final answer
    x = 3,319.78

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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.