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Finding the Fourth Proportional to 1,206, 1,654.27 and 1,195.60

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Solution

The fourth proportional to 1,206, 1,654.27 and 1,195.60 is: 1,640.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206 : 1,654.27 = 1,195.60 : x
  2. Step 2: Convert to fraction form
    1,206/1,654.27 = 1,195.60/x
  3. Step 3: Cross multiply
    1,206x = 1,654.27 × 1,195.60
  4. Step 4: Simplify right side
    1,206x = 1,977,845.21
  5. Step 5: Solve for x
    x = 1,977,845.21/1,206
  6. Step 6: Final answer
    x = 1,640.00

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.