Home / 3,465.10-5,190.97-1,999.81

Finding the Fourth Proportional to 3,465.10, 5,190.97 and 1,999.81

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Solution

The fourth proportional to 3,465.10, 5,190.97 and 1,999.81 is: 2,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.10 : 5,190.97 = 1,999.81 : x
  2. Step 2: Convert to fraction form
    3,465.10/5,190.97 = 1,999.81/x
  3. Step 3: Cross multiply
    3,465.10x = 5,190.97 × 1,999.81
  4. Step 4: Simplify right side
    3,465.10x = 10,380,953.72
  5. Step 5: Solve for x
    x = 10,380,953.72/3,465.10
  6. Step 6: Final answer
    x = 2,995.86

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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.