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Finding the Fourth Proportional to 1,999.02, 2,760 and 1,301.60

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Solution

The fourth proportional to 1,999.02, 2,760 and 1,301.60 is: 1,797.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.02 : 2,760 = 1,301.60 : x
  2. Step 2: Convert to fraction form
    1,999.02/2,760 = 1,301.60/x
  3. Step 3: Cross multiply
    1,999.02x = 2,760 × 1,301.60
  4. Step 4: Simplify right side
    1,999.02x = 3,592,416.00
  5. Step 5: Solve for x
    x = 3,592,416.00/1,999.02
  6. Step 6: Final answer
    x = 1,797.09

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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.