Home / 3,208.24-4,428.12-1,811.44

Finding the Fourth Proportional to 3,208.24, 4,428.12 and 1,811.44

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Solution

The fourth proportional to 3,208.24, 4,428.12 and 1,811.44 is: 2,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.24 : 4,428.12 = 1,811.44 : x
  2. Step 2: Convert to fraction form
    3,208.24/4,428.12 = 1,811.44/x
  3. Step 3: Cross multiply
    3,208.24x = 4,428.12 × 1,811.44
  4. Step 4: Simplify right side
    3,208.24x = 8,021,273.69
  5. Step 5: Solve for x
    x = 8,021,273.69/3,208.24
  6. Step 6: Final answer
    x = 2,500.21

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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.