Home / 3,208.89-4,428.33-1,811.64

Finding the Fourth Proportional to 3,208.89, 4,428.33 and 1,811.64

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Solution

The fourth proportional to 3,208.89, 4,428.33 and 1,811.64 is: 2,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.89 : 4,428.33 = 1,811.64 : x
  2. Step 2: Convert to fraction form
    3,208.89/4,428.33 = 1,811.64/x
  3. Step 3: Cross multiply
    3,208.89x = 4,428.33 × 1,811.64
  4. Step 4: Simplify right side
    3,208.89x = 8,022,539.76
  5. Step 5: Solve for x
    x = 8,022,539.76/3,208.89
  6. Step 6: Final answer
    x = 2,500.10

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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.