Home / 3,788.72-5,682.60-1,191.68

Finding the Fourth Proportional to 3,788.72, 5,682.60 and 1,191.68

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Solution

The fourth proportional to 3,788.72, 5,682.60 and 1,191.68 is: 1,787.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.72 : 5,682.60 = 1,191.68 : x
  2. Step 2: Convert to fraction form
    3,788.72/5,682.60 = 1,191.68/x
  3. Step 3: Cross multiply
    3,788.72x = 5,682.60 × 1,191.68
  4. Step 4: Simplify right side
    3,788.72x = 6,771,840.77
  5. Step 5: Solve for x
    x = 6,771,840.77/3,788.72
  6. Step 6: Final answer
    x = 1,787.37

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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.