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Finding the Fourth Proportional to 3,999.94, 5,995.86 and 1,916.89

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Solution

The fourth proportional to 3,999.94, 5,995.86 and 1,916.89 is: 2,873.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.94 : 5,995.86 = 1,916.89 : x
  2. Step 2: Convert to fraction form
    3,999.94/5,995.86 = 1,916.89/x
  3. Step 3: Cross multiply
    3,999.94x = 5,995.86 × 1,916.89
  4. Step 4: Simplify right side
    3,999.94x = 11,493,404.08
  5. Step 5: Solve for x
    x = 11,493,404.08/3,999.94
  6. Step 6: Final answer
    x = 2,873.39

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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.