Home / 7,749.72-10,694.65-4,212.92

Finding the Fourth Proportional to 7,749.72, 10,694.65 and 4,212.92

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Solution

The fourth proportional to 7,749.72, 10,694.65 and 4,212.92 is: 5,813.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.72 : 10,694.65 = 4,212.92 : x
  2. Step 2: Convert to fraction form
    7,749.72/10,694.65 = 4,212.92/x
  3. Step 3: Cross multiply
    7,749.72x = 10,694.65 × 4,212.92
  4. Step 4: Simplify right side
    7,749.72x = 45,055,704.88
  5. Step 5: Solve for x
    x = 45,055,704.88/7,749.72
  6. Step 6: Final answer
    x = 5,813.85

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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.