Home / 7,759.24-10,707.78-4,222.42

Finding the Fourth Proportional to 7,759.24, 10,707.78 and 4,222.42

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Solution

The fourth proportional to 7,759.24, 10,707.78 and 4,222.42 is: 5,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.24 : 10,707.78 = 4,222.42 : x
  2. Step 2: Convert to fraction form
    7,759.24/10,707.78 = 4,222.42/x
  3. Step 3: Cross multiply
    7,759.24x = 10,707.78 × 4,222.42
  4. Step 4: Simplify right side
    7,759.24x = 45,212,744.43
  5. Step 5: Solve for x
    x = 45,212,744.43/7,759.24
  6. Step 6: Final answer
    x = 5,826.96

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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.