Home / 3,218.70-4,825.78-1,368.87

Finding the Fourth Proportional to 3,218.70, 4,825.78 and 1,368.87

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Solution

The fourth proportional to 3,218.70, 4,825.78 and 1,368.87 is: 2,052.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.70 : 4,825.78 = 1,368.87 : x
  2. Step 2: Convert to fraction form
    3,218.70/4,825.78 = 1,368.87/x
  3. Step 3: Cross multiply
    3,218.70x = 4,825.78 × 1,368.87
  4. Step 4: Simplify right side
    3,218.70x = 6,605,843.95
  5. Step 5: Solve for x
    x = 6,605,843.95/3,218.70
  6. Step 6: Final answer
    x = 2,052.33

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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.