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Finding the Fourth Proportional to 1,879.75, 2,594.15 and 1,083.20

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Solution

The fourth proportional to 1,879.75, 2,594.15 and 1,083.20 is: 1,494.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.75 : 2,594.15 = 1,083.20 : x
  2. Step 2: Convert to fraction form
    1,879.75/2,594.15 = 1,083.20/x
  3. Step 3: Cross multiply
    1,879.75x = 2,594.15 × 1,083.20
  4. Step 4: Simplify right side
    1,879.75x = 2,809,967.40
  5. Step 5: Solve for x
    x = 2,809,967.40/1,879.75
  6. Step 6: Final answer
    x = 1,494.86

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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.