Home / 3,782.08-5,217.92-2,209.60

Finding the Fourth Proportional to 3,782.08, 5,217.92 and 2,209.60

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Solution

The fourth proportional to 3,782.08, 5,217.92 and 2,209.60 is: 3,048.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.08 : 5,217.92 = 2,209.60 : x
  2. Step 2: Convert to fraction form
    3,782.08/5,217.92 = 2,209.60/x
  3. Step 3: Cross multiply
    3,782.08x = 5,217.92 × 2,209.60
  4. Step 4: Simplify right side
    3,782.08x = 11,529,516.03
  5. Step 5: Solve for x
    x = 11,529,516.03/3,782.08
  6. Step 6: Final answer
    x = 3,048.46

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1.5x scale

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.