Home / 2,081.34-2,873.43-1,383.66

Finding the Fourth Proportional to 2,081.34, 2,873.43 and 1,383.66

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Solution

The fourth proportional to 2,081.34, 2,873.43 and 1,383.66 is: 1,910.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.34 : 2,873.43 = 1,383.66 : x
  2. Step 2: Convert to fraction form
    2,081.34/2,873.43 = 1,383.66/x
  3. Step 3: Cross multiply
    2,081.34x = 2,873.43 × 1,383.66
  4. Step 4: Simplify right side
    2,081.34x = 3,975,850.15
  5. Step 5: Solve for x
    x = 3,975,850.15/2,081.34
  6. Step 6: Final answer
    x = 1,910.24

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1.5x scale

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.