Home / 4,268.70-6,391.53-2,212.38

Finding the Fourth Proportional to 4,268.70, 6,391.53 and 2,212.38

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Solution

The fourth proportional to 4,268.70, 6,391.53 and 2,212.38 is: 3,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268.70 : 6,391.53 = 2,212.38 : x
  2. Step 2: Convert to fraction form
    4,268.70/6,391.53 = 2,212.38/x
  3. Step 3: Cross multiply
    4,268.70x = 6,391.53 × 2,212.38
  4. Step 4: Simplify right side
    4,268.70x = 14,140,493.14
  5. Step 5: Solve for x
    x = 14,140,493.14/4,268.70
  6. Step 6: Final answer
    x = 3,312.60

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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.