Home / 3,208.95-4,811.40-1,359.09

Finding the Fourth Proportional to 3,208.95, 4,811.40 and 1,359.09

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Solution

The fourth proportional to 3,208.95, 4,811.40 and 1,359.09 is: 2,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.95 : 4,811.40 = 1,359.09 : x
  2. Step 2: Convert to fraction form
    3,208.95/4,811.40 = 1,359.09/x
  3. Step 3: Cross multiply
    3,208.95x = 4,811.40 × 1,359.09
  4. Step 4: Simplify right side
    3,208.95x = 6,539,125.63
  5. Step 5: Solve for x
    x = 6,539,125.63/3,208.95
  6. Step 6: Final answer
    x = 2,037.78

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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.