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Finding the Fourth Proportional to 1,444.22, 1,993.07 and 854.74

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Solution

The fourth proportional to 1,444.22, 1,993.07 and 854.74 is: 1,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.22 : 1,993.07 = 854.74 : x
  2. Step 2: Convert to fraction form
    1,444.22/1,993.07 = 854.74/x
  3. Step 3: Cross multiply
    1,444.22x = 1,993.07 × 854.74
  4. Step 4: Simplify right side
    1,444.22x = 1,703,556.65
  5. Step 5: Solve for x
    x = 1,703,556.65/1,444.22
  6. Step 6: Final answer
    x = 1,179.57

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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.