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Finding the Fourth Proportional to 1,237.54, 1,857.21 and 996.97

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Solution

The fourth proportional to 1,237.54, 1,857.21 and 996.97 is: 1,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237.54 : 1,857.21 = 996.97 : x
  2. Step 2: Convert to fraction form
    1,237.54/1,857.21 = 996.97/x
  3. Step 3: Cross multiply
    1,237.54x = 1,857.21 × 996.97
  4. Step 4: Simplify right side
    1,237.54x = 1,851,582.65
  5. Step 5: Solve for x
    x = 1,851,582.65/1,237.54
  6. Step 6: Final answer
    x = 1,496.18

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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.