Home / 3,786.75-5,672.70-1,932.39

Finding the Fourth Proportional to 3,786.75, 5,672.70 and 1,932.39

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Solution

The fourth proportional to 3,786.75, 5,672.70 and 1,932.39 is: 2,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.75 : 5,672.70 = 1,932.39 : x
  2. Step 2: Convert to fraction form
    3,786.75/5,672.70 = 1,932.39/x
  3. Step 3: Cross multiply
    3,786.75x = 5,672.70 × 1,932.39
  4. Step 4: Simplify right side
    3,786.75x = 10,961,868.75
  5. Step 5: Solve for x
    x = 10,961,868.75/3,786.75
  6. Step 6: Final answer
    x = 2,894.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.