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Finding the Fourth Proportional to 1,891.74, 2,834.73 and 1,480.26

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Solution

The fourth proportional to 1,891.74, 2,834.73 and 1,480.26 is: 2,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.74 : 2,834.73 = 1,480.26 : x
  2. Step 2: Convert to fraction form
    1,891.74/2,834.73 = 1,480.26/x
  3. Step 3: Cross multiply
    1,891.74x = 2,834.73 × 1,480.26
  4. Step 4: Simplify right side
    1,891.74x = 4,196,137.43
  5. Step 5: Solve for x
    x = 4,196,137.43/1,891.74
  6. Step 6: Final answer
    x = 2,218.14

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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.