Home / 4,380.80-6,571.20-2,825.60

Finding the Fourth Proportional to 4,380.80, 6,571.20 and 2,825.60

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Solution

The fourth proportional to 4,380.80, 6,571.20 and 2,825.60 is: 4,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.80 : 6,571.20 = 2,825.60 : x
  2. Step 2: Convert to fraction form
    4,380.80/6,571.20 = 2,825.60/x
  3. Step 3: Cross multiply
    4,380.80x = 6,571.20 × 2,825.60
  4. Step 4: Simplify right side
    4,380.80x = 18,567,582.72
  5. Step 5: Solve for x
    x = 18,567,582.72/4,380.80
  6. Step 6: Final answer
    x = 4,238.40

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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.