Home / 3,083.21-4,255.30-1,964.53

Finding the Fourth Proportional to 3,083.21, 4,255.30 and 1,964.53

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Solution

The fourth proportional to 3,083.21, 4,255.30 and 1,964.53 is: 2,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.21 : 4,255.30 = 1,964.53 : x
  2. Step 2: Convert to fraction form
    3,083.21/4,255.30 = 1,964.53/x
  3. Step 3: Cross multiply
    3,083.21x = 4,255.30 × 1,964.53
  4. Step 4: Simplify right side
    3,083.21x = 8,359,664.51
  5. Step 5: Solve for x
    x = 8,359,664.51/3,083.21
  6. Step 6: Final answer
    x = 2,711.35

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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.