Home / 3,785.20-5,676.94-1,187.52

Finding the Fourth Proportional to 3,785.20, 5,676.94 and 1,187.52

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Solution

The fourth proportional to 3,785.20, 5,676.94 and 1,187.52 is: 1,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.20 : 5,676.94 = 1,187.52 : x
  2. Step 2: Convert to fraction form
    3,785.20/5,676.94 = 1,187.52/x
  3. Step 3: Cross multiply
    3,785.20x = 5,676.94 × 1,187.52
  4. Step 4: Simplify right side
    3,785.20x = 6,741,479.79
  5. Step 5: Solve for x
    x = 6,741,479.79/3,785.20
  6. Step 6: Final answer
    x = 1,781.01

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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.