Home / 2,618.39-3,922.98-1,383.08

Finding the Fourth Proportional to 2,618.39, 3,922.98 and 1,383.08

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Solution

The fourth proportional to 2,618.39, 3,922.98 and 1,383.08 is: 2,072.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.39 : 3,922.98 = 1,383.08 : x
  2. Step 2: Convert to fraction form
    2,618.39/3,922.98 = 1,383.08/x
  3. Step 3: Cross multiply
    2,618.39x = 3,922.98 × 1,383.08
  4. Step 4: Simplify right side
    2,618.39x = 5,425,795.18
  5. Step 5: Solve for x
    x = 5,425,795.18/2,618.39
  6. Step 6: Final answer
    x = 2,072.19

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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.