Home / 4,091.32-6,137.96-1,318.26

Finding the Fourth Proportional to 4,091.32, 6,137.96 and 1,318.26

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Solution

The fourth proportional to 4,091.32, 6,137.96 and 1,318.26 is: 1,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.32 : 6,137.96 = 1,318.26 : x
  2. Step 2: Convert to fraction form
    4,091.32/6,137.96 = 1,318.26/x
  3. Step 3: Cross multiply
    4,091.32x = 6,137.96 × 1,318.26
  4. Step 4: Simplify right side
    4,091.32x = 8,091,427.15
  5. Step 5: Solve for x
    x = 8,091,427.15/4,091.32
  6. Step 6: Final answer
    x = 1,977.71

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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.