Home / 3,317.80-4,976.70-3,269.20

Finding the Fourth Proportional to 3,317.80, 4,976.70 and 3,269.20

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Solution

The fourth proportional to 3,317.80, 4,976.70 and 3,269.20 is: 4,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.80 : 4,976.70 = 3,269.20 : x
  2. Step 2: Convert to fraction form
    3,317.80/4,976.70 = 3,269.20/x
  3. Step 3: Cross multiply
    3,317.80x = 4,976.70 × 3,269.20
  4. Step 4: Simplify right side
    3,317.80x = 16,269,827.64
  5. Step 5: Solve for x
    x = 16,269,827.64/3,317.80
  6. Step 6: Final answer
    x = 4,903.80

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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.