Home / 3,856.41-5,319.27-2,676.65

Finding the Fourth Proportional to 3,856.41, 5,319.27 and 2,676.65

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Solution

The fourth proportional to 3,856.41, 5,319.27 and 2,676.65 is: 3,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.41 : 5,319.27 = 2,676.65 : x
  2. Step 2: Convert to fraction form
    3,856.41/5,319.27 = 2,676.65/x
  3. Step 3: Cross multiply
    3,856.41x = 5,319.27 × 2,676.65
  4. Step 4: Simplify right side
    3,856.41x = 14,237,797.45
  5. Step 5: Solve for x
    x = 14,237,797.45/3,856.41
  6. Step 6: Final answer
    x = 3,691.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.