Home / 3,319.80-4,975.08-3,220.02

Finding the Fourth Proportional to 3,319.80, 4,975.08 and 3,220.02

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Solution

The fourth proportional to 3,319.80, 4,975.08 and 3,220.02 is: 4,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.80 : 4,975.08 = 3,220.02 : x
  2. Step 2: Convert to fraction form
    3,319.80/4,975.08 = 3,220.02/x
  3. Step 3: Cross multiply
    3,319.80x = 4,975.08 × 3,220.02
  4. Step 4: Simplify right side
    3,319.80x = 16,019,846.68
  5. Step 5: Solve for x
    x = 16,019,846.68/3,319.80
  6. Step 6: Final answer
    x = 4,825.55

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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.