Home / 3,788.56-5,682.21-1,190.89

Finding the Fourth Proportional to 3,788.56, 5,682.21 and 1,190.89

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Solution

The fourth proportional to 3,788.56, 5,682.21 and 1,190.89 is: 1,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.56 : 5,682.21 = 1,190.89 : x
  2. Step 2: Convert to fraction form
    3,788.56/5,682.21 = 1,190.89/x
  3. Step 3: Cross multiply
    3,788.56x = 5,682.21 × 1,190.89
  4. Step 4: Simplify right side
    3,788.56x = 6,766,887.07
  5. Step 5: Solve for x
    x = 6,766,887.07/3,788.56
  6. Step 6: Final answer
    x = 1,786.14

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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.