Home / 3,788.72-5,682.53-1,191.32

Finding the Fourth Proportional to 3,788.72, 5,682.53 and 1,191.32

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Solution

The fourth proportional to 3,788.72, 5,682.53 and 1,191.32 is: 1,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.72 : 5,682.53 = 1,191.32 : x
  2. Step 2: Convert to fraction form
    3,788.72/5,682.53 = 1,191.32/x
  3. Step 3: Cross multiply
    3,788.72x = 5,682.53 × 1,191.32
  4. Step 4: Simplify right side
    3,788.72x = 6,769,683.23
  5. Step 5: Solve for x
    x = 6,769,683.23/3,788.72
  6. Step 6: Final answer
    x = 1,786.80

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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.