Home / 3,785.37-5,676.25-1,319.88

Finding the Fourth Proportional to 3,785.37, 5,676.25 and 1,319.88

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Solution

The fourth proportional to 3,785.37, 5,676.25 and 1,319.88 is: 1,979.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.37 : 5,676.25 = 1,319.88 : x
  2. Step 2: Convert to fraction form
    3,785.37/5,676.25 = 1,319.88/x
  3. Step 3: Cross multiply
    3,785.37x = 5,676.25 × 1,319.88
  4. Step 4: Simplify right side
    3,785.37x = 7,491,968.85
  5. Step 5: Solve for x
    x = 7,491,968.85/3,785.37
  6. Step 6: Final answer
    x = 1,979.19

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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.