Home / 2,081.26-3,120.96-1,107.16

Finding the Fourth Proportional to 2,081.26, 3,120.96 and 1,107.16

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Solution

The fourth proportional to 2,081.26, 3,120.96 and 1,107.16 is: 1,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.26 : 3,120.96 = 1,107.16 : x
  2. Step 2: Convert to fraction form
    2,081.26/3,120.96 = 1,107.16/x
  3. Step 3: Cross multiply
    2,081.26x = 3,120.96 × 1,107.16
  4. Step 4: Simplify right side
    2,081.26x = 3,455,402.07
  5. Step 5: Solve for x
    x = 3,455,402.07/2,081.26
  6. Step 6: Final answer
    x = 1,660.25

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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.