Home / 4,091.26-6,137.87-1,318.20

Finding the Fourth Proportional to 4,091.26, 6,137.87 and 1,318.20

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Solution

The fourth proportional to 4,091.26, 6,137.87 and 1,318.20 is: 1,977.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.26 : 6,137.87 = 1,318.20 : x
  2. Step 2: Convert to fraction form
    4,091.26/6,137.87 = 1,318.20/x
  3. Step 3: Cross multiply
    4,091.26x = 6,137.87 × 1,318.20
  4. Step 4: Simplify right side
    4,091.26x = 8,090,940.23
  5. Step 5: Solve for x
    x = 8,090,940.23/4,091.26
  6. Step 6: Final answer
    x = 1,977.62

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1.5x scale

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.