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Finding the Fourth Proportional to 1,270.82, 1,900.97 and 1,193.06

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Solution

The fourth proportional to 1,270.82, 1,900.97 and 1,193.06 is: 1,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.82 : 1,900.97 = 1,193.06 : x
  2. Step 2: Convert to fraction form
    1,270.82/1,900.97 = 1,193.06/x
  3. Step 3: Cross multiply
    1,270.82x = 1,900.97 × 1,193.06
  4. Step 4: Simplify right side
    1,270.82x = 2,267,970.06
  5. Step 5: Solve for x
    x = 2,267,970.06/1,270.82
  6. Step 6: Final answer
    x = 1,784.65

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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.