Home / 3,788.12-5,682.72-1,191.26

Finding the Fourth Proportional to 3,788.12, 5,682.72 and 1,191.26

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Solution

The fourth proportional to 3,788.12, 5,682.72 and 1,191.26 is: 1,787.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.12 : 5,682.72 = 1,191.26 : x
  2. Step 2: Convert to fraction form
    3,788.12/5,682.72 = 1,191.26/x
  3. Step 3: Cross multiply
    3,788.12x = 5,682.72 × 1,191.26
  4. Step 4: Simplify right side
    3,788.12x = 6,769,568.61
  5. Step 5: Solve for x
    x = 6,769,568.61/3,788.12
  6. Step 6: Final answer
    x = 1,787.05

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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.