Home / 3,168.45-4,749.77-1,219.19

Finding the Fourth Proportional to 3,168.45, 4,749.77 and 1,219.19

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Solution

The fourth proportional to 3,168.45, 4,749.77 and 1,219.19 is: 1,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.45 : 4,749.77 = 1,219.19 : x
  2. Step 2: Convert to fraction form
    3,168.45/4,749.77 = 1,219.19/x
  3. Step 3: Cross multiply
    3,168.45x = 4,749.77 × 1,219.19
  4. Step 4: Simplify right side
    3,168.45x = 5,790,851.39
  5. Step 5: Solve for x
    x = 5,790,851.39/3,168.45
  6. Step 6: Final answer
    x = 1,827.66

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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.