Home / 3,218.50-4,441.16-1,801.99

Finding the Fourth Proportional to 3,218.50, 4,441.16 and 1,801.99

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Solution

The fourth proportional to 3,218.50, 4,441.16 and 1,801.99 is: 2,486.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.50 : 4,441.16 = 1,801.99 : x
  2. Step 2: Convert to fraction form
    3,218.50/4,441.16 = 1,801.99/x
  3. Step 3: Cross multiply
    3,218.50x = 4,441.16 × 1,801.99
  4. Step 4: Simplify right side
    3,218.50x = 8,002,900.85
  5. Step 5: Solve for x
    x = 8,002,900.85/3,218.50
  6. Step 6: Final answer
    x = 2,486.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.