Home / 7,749.57-10,694.33-4,212.78

Finding the Fourth Proportional to 7,749.57, 10,694.33 and 4,212.78

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Solution

The fourth proportional to 7,749.57, 10,694.33 and 4,212.78 is: 5,813.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.57 : 10,694.33 = 4,212.78 : x
  2. Step 2: Convert to fraction form
    7,749.57/10,694.33 = 4,212.78/x
  3. Step 3: Cross multiply
    7,749.57x = 10,694.33 × 4,212.78
  4. Step 4: Simplify right side
    7,749.57x = 45,052,814.17
  5. Step 5: Solve for x
    x = 45,052,814.17/7,749.57
  6. Step 6: Final answer
    x = 5,813.59

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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.