Home / 7,759.67-10,708.07-4,222.80

Finding the Fourth Proportional to 7,759.67, 10,708.07 and 4,222.80

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Solution

The fourth proportional to 7,759.67, 10,708.07 and 4,222.80 is: 5,827.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.67 : 10,708.07 = 4,222.80 : x
  2. Step 2: Convert to fraction form
    7,759.67/10,708.07 = 4,222.80/x
  3. Step 3: Cross multiply
    7,759.67x = 10,708.07 × 4,222.80
  4. Step 4: Simplify right side
    7,759.67x = 45,218,016.88
  5. Step 5: Solve for x
    x = 45,218,016.88/7,759.67
  6. Step 6: Final answer
    x = 5,827.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.