Home / 3,999.45-5,991.96-2,355.09

Finding the Fourth Proportional to 3,999.45, 5,991.96 and 2,355.09

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Solution

The fourth proportional to 3,999.45, 5,991.96 and 2,355.09 is: 3,528.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.45 : 5,991.96 = 2,355.09 : x
  2. Step 2: Convert to fraction form
    3,999.45/5,991.96 = 2,355.09/x
  3. Step 3: Cross multiply
    3,999.45x = 5,991.96 × 2,355.09
  4. Step 4: Simplify right side
    3,999.45x = 14,111,605.08
  5. Step 5: Solve for x
    x = 14,111,605.08/3,999.45
  6. Step 6: Final answer
    x = 3,528.39

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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.