Home / 5,485.94-8,230.43-1,788.09

Finding the Fourth Proportional to 5,485.94, 8,230.43 and 1,788.09

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Solution

The fourth proportional to 5,485.94, 8,230.43 and 1,788.09 is: 2,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.94 : 8,230.43 = 1,788.09 : x
  2. Step 2: Convert to fraction form
    5,485.94/8,230.43 = 1,788.09/x
  3. Step 3: Cross multiply
    5,485.94x = 8,230.43 × 1,788.09
  4. Step 4: Simplify right side
    5,485.94x = 14,716,749.58
  5. Step 5: Solve for x
    x = 14,716,749.58/5,485.94
  6. Step 6: Final answer
    x = 2,682.63

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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.