Home / 3,969.11-5,953.09-2,779.54

Finding the Fourth Proportional to 3,969.11, 5,953.09 and 2,779.54

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Solution

The fourth proportional to 3,969.11, 5,953.09 and 2,779.54 is: 4,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.11 : 5,953.09 = 2,779.54 : x
  2. Step 2: Convert to fraction form
    3,969.11/5,953.09 = 2,779.54/x
  3. Step 3: Cross multiply
    3,969.11x = 5,953.09 × 2,779.54
  4. Step 4: Simplify right side
    3,969.11x = 16,546,851.78
  5. Step 5: Solve for x
    x = 16,546,851.78/3,969.11
  6. Step 6: Final answer
    x = 4,168.91

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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.