Home / 7,759.11-10,707.63-4,222.35

Finding the Fourth Proportional to 7,759.11, 10,707.63 and 4,222.35

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Solution

The fourth proportional to 7,759.11, 10,707.63 and 4,222.35 is: 5,826.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.11 : 10,707.63 = 4,222.35 : x
  2. Step 2: Convert to fraction form
    7,759.11/10,707.63 = 4,222.35/x
  3. Step 3: Cross multiply
    7,759.11x = 10,707.63 × 4,222.35
  4. Step 4: Simplify right side
    7,759.11x = 45,211,286.88
  5. Step 5: Solve for x
    x = 45,211,286.88/7,759.11
  6. Step 6: Final answer
    x = 5,826.87

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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.