Home / 3,786.58-5,680.14-1,191.34

Finding the Fourth Proportional to 3,786.58, 5,680.14 and 1,191.34

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Solution

The fourth proportional to 3,786.58, 5,680.14 and 1,191.34 is: 1,787.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.58 : 5,680.14 = 1,191.34 : x
  2. Step 2: Convert to fraction form
    3,786.58/5,680.14 = 1,191.34/x
  3. Step 3: Cross multiply
    3,786.58x = 5,680.14 × 1,191.34
  4. Step 4: Simplify right side
    3,786.58x = 6,766,977.99
  5. Step 5: Solve for x
    x = 6,766,977.99/3,786.58
  6. Step 6: Final answer
    x = 1,787.09

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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.