Home / 4,380.80-6,556.80-3,401.60

Finding the Fourth Proportional to 4,380.80, 6,556.80 and 3,401.60

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Solution

The fourth proportional to 4,380.80, 6,556.80 and 3,401.60 is: 5,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.80 : 6,556.80 = 3,401.60 : x
  2. Step 2: Convert to fraction form
    4,380.80/6,556.80 = 3,401.60/x
  3. Step 3: Cross multiply
    4,380.80x = 6,556.80 × 3,401.60
  4. Step 4: Simplify right side
    4,380.80x = 22,303,610.88
  5. Step 5: Solve for x
    x = 22,303,610.88/4,380.80
  6. Step 6: Final answer
    x = 5,091.22

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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.