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Finding the Fourth Proportional to 3,999.38, 6,001.49 and 1,690.88

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Solution

The fourth proportional to 3,999.38, 6,001.49 and 1,690.88 is: 2,537.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.38 : 6,001.49 = 1,690.88 : x
  2. Step 2: Convert to fraction form
    3,999.38/6,001.49 = 1,690.88/x
  3. Step 3: Cross multiply
    3,999.38x = 6,001.49 × 1,690.88
  4. Step 4: Simplify right side
    3,999.38x = 10,147,773.63
  5. Step 5: Solve for x
    x = 10,147,773.63/3,999.38
  6. Step 6: Final answer
    x = 2,537.34

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1.5x scale

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.