Home / 2,428.12-3,634.26-1,778.68

Finding the Fourth Proportional to 2,428.12, 3,634.26 and 1,778.68

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Solution

The fourth proportional to 2,428.12, 3,634.26 and 1,778.68 is: 2,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.12 : 3,634.26 = 1,778.68 : x
  2. Step 2: Convert to fraction form
    2,428.12/3,634.26 = 1,778.68/x
  3. Step 3: Cross multiply
    2,428.12x = 3,634.26 × 1,778.68
  4. Step 4: Simplify right side
    2,428.12x = 6,464,185.58
  5. Step 5: Solve for x
    x = 6,464,185.58/2,428.12
  6. Step 6: Final answer
    x = 2,662.22

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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.