Home / 2,072.39-3,107.66-1,098.26

Finding the Fourth Proportional to 2,072.39, 3,107.66 and 1,098.26

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Solution

The fourth proportional to 2,072.39, 3,107.66 and 1,098.26 is: 1,646.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.39 : 3,107.66 = 1,098.26 : x
  2. Step 2: Convert to fraction form
    2,072.39/3,107.66 = 1,098.26/x
  3. Step 3: Cross multiply
    2,072.39x = 3,107.66 × 1,098.26
  4. Step 4: Simplify right side
    2,072.39x = 3,412,997.64
  5. Step 5: Solve for x
    x = 3,412,997.64/2,072.39
  6. Step 6: Final answer
    x = 1,646.89

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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.