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Finding the Fourth Proportional to 2,879.93, 3,974.28 and 1,637.93

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Solution

The fourth proportional to 2,879.93, 3,974.28 and 1,637.93 is: 2,260.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.93 : 3,974.28 = 1,637.93 : x
  2. Step 2: Convert to fraction form
    2,879.93/3,974.28 = 1,637.93/x
  3. Step 3: Cross multiply
    2,879.93x = 3,974.28 × 1,637.93
  4. Step 4: Simplify right side
    2,879.93x = 6,509,592.44
  5. Step 5: Solve for x
    x = 6,509,592.44/2,879.93
  6. Step 6: Final answer
    x = 2,260.33

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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.