Home / 3,208.35-4,428.50-2,029.80

Finding the Fourth Proportional to 3,208.35, 4,428.50 and 2,029.80

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Solution

The fourth proportional to 3,208.35, 4,428.50 and 2,029.80 is: 2,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.35 : 4,428.50 = 2,029.80 : x
  2. Step 2: Convert to fraction form
    3,208.35/4,428.50 = 2,029.80/x
  3. Step 3: Cross multiply
    3,208.35x = 4,428.50 × 2,029.80
  4. Step 4: Simplify right side
    3,208.35x = 8,988,959.15
  5. Step 5: Solve for x
    x = 8,988,959.15/3,208.35
  6. Step 6: Final answer
    x = 2,801.74

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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.