Home / 3,207.21-4,427.09-1,949.28

Finding the Fourth Proportional to 3,207.21, 4,427.09 and 1,949.28

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Solution

The fourth proportional to 3,207.21, 4,427.09 and 1,949.28 is: 2,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.21 : 4,427.09 = 1,949.28 : x
  2. Step 2: Convert to fraction form
    3,207.21/4,427.09 = 1,949.28/x
  3. Step 3: Cross multiply
    3,207.21x = 4,427.09 × 1,949.28
  4. Step 4: Simplify right side
    3,207.21x = 8,629,638.00
  5. Step 5: Solve for x
    x = 8,629,638.00/3,207.21
  6. Step 6: Final answer
    x = 2,690.70

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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.