Home / 7,749.42-10,694.43-4,212.86

Finding the Fourth Proportional to 7,749.42, 10,694.43 and 4,212.86

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Solution

The fourth proportional to 7,749.42, 10,694.43 and 4,212.86 is: 5,813.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.42 : 10,694.43 = 4,212.86 : x
  2. Step 2: Convert to fraction form
    7,749.42/10,694.43 = 4,212.86/x
  3. Step 3: Cross multiply
    7,749.42x = 10,694.43 × 4,212.86
  4. Step 4: Simplify right side
    7,749.42x = 45,054,143.05
  5. Step 5: Solve for x
    x = 45,054,143.05/7,749.42
  6. Step 6: Final answer
    x = 5,813.87

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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.