Home / 3,108.92-4,290.03-1,782.54

Finding the Fourth Proportional to 3,108.92, 4,290.03 and 1,782.54

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Solution

The fourth proportional to 3,108.92, 4,290.03 and 1,782.54 is: 2,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.92 : 4,290.03 = 1,782.54 : x
  2. Step 2: Convert to fraction form
    3,108.92/4,290.03 = 1,782.54/x
  3. Step 3: Cross multiply
    3,108.92x = 4,290.03 × 1,782.54
  4. Step 4: Simplify right side
    3,108.92x = 7,647,150.08
  5. Step 5: Solve for x
    x = 7,647,150.08/3,108.92
  6. Step 6: Final answer
    x = 2,459.75

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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.