Home / 3,919.07-5,409.05-2,973.19

Finding the Fourth Proportional to 3,919.07, 5,409.05 and 2,973.19

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Solution

The fourth proportional to 3,919.07, 5,409.05 and 2,973.19 is: 4,103.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.07 : 5,409.05 = 2,973.19 : x
  2. Step 2: Convert to fraction form
    3,919.07/5,409.05 = 2,973.19/x
  3. Step 3: Cross multiply
    3,919.07x = 5,409.05 × 2,973.19
  4. Step 4: Simplify right side
    3,919.07x = 16,082,104.98
  5. Step 5: Solve for x
    x = 16,082,104.98/3,919.07
  6. Step 6: Final answer
    x = 4,103.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.