Home / 2,640.44-3,642.62-1,521.08

Finding the Fourth Proportional to 2,640.44, 3,642.62 and 1,521.08

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Solution

The fourth proportional to 2,640.44, 3,642.62 and 1,521.08 is: 2,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.44 : 3,642.62 = 1,521.08 : x
  2. Step 2: Convert to fraction form
    2,640.44/3,642.62 = 1,521.08/x
  3. Step 3: Cross multiply
    2,640.44x = 3,642.62 × 1,521.08
  4. Step 4: Simplify right side
    2,640.44x = 5,540,716.43
  5. Step 5: Solve for x
    x = 5,540,716.43/2,640.44
  6. Step 6: Final answer
    x = 2,098.41

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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.