Home / 2,330.82-3,212.33-1,889.78

Finding the Fourth Proportional to 2,330.82, 3,212.33 and 1,889.78

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Solution

The fourth proportional to 2,330.82, 3,212.33 and 1,889.78 is: 2,604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.82 : 3,212.33 = 1,889.78 : x
  2. Step 2: Convert to fraction form
    2,330.82/3,212.33 = 1,889.78/x
  3. Step 3: Cross multiply
    2,330.82x = 3,212.33 × 1,889.78
  4. Step 4: Simplify right side
    2,330.82x = 6,070,571.48
  5. Step 5: Solve for x
    x = 6,070,571.48/2,330.82
  6. Step 6: Final answer
    x = 2,604.48

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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.