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Finding the Fourth Proportional to 3,999.06, 5,998.68 and 1,077.39

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Solution

The fourth proportional to 3,999.06, 5,998.68 and 1,077.39 is: 1,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.06 : 5,998.68 = 1,077.39 : x
  2. Step 2: Convert to fraction form
    3,999.06/5,998.68 = 1,077.39/x
  3. Step 3: Cross multiply
    3,999.06x = 5,998.68 × 1,077.39
  4. Step 4: Simplify right side
    3,999.06x = 6,462,917.85
  5. Step 5: Solve for x
    x = 6,462,917.85/3,999.06
  6. Step 6: Final answer
    x = 1,616.11

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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.