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Finding the Fourth Proportional to 1,918.73, 2,876.03 and 1,095.23

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Solution

The fourth proportional to 1,918.73, 2,876.03 and 1,095.23 is: 1,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.73 : 2,876.03 = 1,095.23 : x
  2. Step 2: Convert to fraction form
    1,918.73/2,876.03 = 1,095.23/x
  3. Step 3: Cross multiply
    1,918.73x = 2,876.03 × 1,095.23
  4. Step 4: Simplify right side
    1,918.73x = 3,149,894.48
  5. Step 5: Solve for x
    x = 3,149,894.48/1,918.73
  6. Step 6: Final answer
    x = 1,641.66

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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.