Home / 4,375.20-6,555.60-3,208.80

Finding the Fourth Proportional to 4,375.20, 6,555.60 and 3,208.80

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Solution

The fourth proportional to 4,375.20, 6,555.60 and 3,208.80 is: 4,807.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,375.20 : 6,555.60 = 3,208.80 : x
  2. Step 2: Convert to fraction form
    4,375.20/6,555.60 = 3,208.80/x
  3. Step 3: Cross multiply
    4,375.20x = 6,555.60 × 3,208.80
  4. Step 4: Simplify right side
    4,375.20x = 21,035,609.28
  5. Step 5: Solve for x
    x = 21,035,609.28/4,375.20
  6. Step 6: Final answer
    x = 4,807.92

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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.