Home / 2,678.44-3,693.45-2,618.08

Finding the Fourth Proportional to 2,678.44, 3,693.45 and 2,618.08

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Solution

The fourth proportional to 2,678.44, 3,693.45 and 2,618.08 is: 3,610.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.44 : 3,693.45 = 2,618.08 : x
  2. Step 2: Convert to fraction form
    2,678.44/3,693.45 = 2,618.08/x
  3. Step 3: Cross multiply
    2,678.44x = 3,693.45 × 2,618.08
  4. Step 4: Simplify right side
    2,678.44x = 9,669,747.58
  5. Step 5: Solve for x
    x = 9,669,747.58/2,678.44
  6. Step 6: Final answer
    x = 3,610.22

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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.