Home / 3,317.80-4,976.70-2,218.60

Finding the Fourth Proportional to 3,317.80, 4,976.70 and 2,218.60

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Solution

The fourth proportional to 3,317.80, 4,976.70 and 2,218.60 is: 3,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.80 : 4,976.70 = 2,218.60 : x
  2. Step 2: Convert to fraction form
    3,317.80/4,976.70 = 2,218.60/x
  3. Step 3: Cross multiply
    3,317.80x = 4,976.70 × 2,218.60
  4. Step 4: Simplify right side
    3,317.80x = 11,041,306.62
  5. Step 5: Solve for x
    x = 11,041,306.62/3,317.80
  6. Step 6: Final answer
    x = 3,327.90

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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.