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Finding the Fourth Proportional to 1,879.93, 2,822.73 and 1,621.95

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Solution

The fourth proportional to 1,879.93, 2,822.73 and 1,621.95 is: 2,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.93 : 2,822.73 = 1,621.95 : x
  2. Step 2: Convert to fraction form
    1,879.93/2,822.73 = 1,621.95/x
  3. Step 3: Cross multiply
    1,879.93x = 2,822.73 × 1,621.95
  4. Step 4: Simplify right side
    1,879.93x = 4,578,326.92
  5. Step 5: Solve for x
    x = 4,578,326.92/1,879.93
  6. Step 6: Final answer
    x = 2,435.37

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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.