Home / 7,940.19-11,911.08-2,745.39

Finding the Fourth Proportional to 7,940.19, 11,911.08 and 2,745.39

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Solution

The fourth proportional to 7,940.19, 11,911.08 and 2,745.39 is: 4,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.19 : 11,911.08 = 2,745.39 : x
  2. Step 2: Convert to fraction form
    7,940.19/11,911.08 = 2,745.39/x
  3. Step 3: Cross multiply
    7,940.19x = 11,911.08 × 2,745.39
  4. Step 4: Simplify right side
    7,940.19x = 32,700,559.92
  5. Step 5: Solve for x
    x = 32,700,559.92/7,940.19
  6. Step 6: Final answer
    x = 4,118.36

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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.