Home / 2,629.22-3,942.21-1,808.51

Finding the Fourth Proportional to 2,629.22, 3,942.21 and 1,808.51

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Solution

The fourth proportional to 2,629.22, 3,942.21 and 1,808.51 is: 2,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.22 : 3,942.21 = 1,808.51 : x
  2. Step 2: Convert to fraction form
    2,629.22/3,942.21 = 1,808.51/x
  3. Step 3: Cross multiply
    2,629.22x = 3,942.21 × 1,808.51
  4. Step 4: Simplify right side
    2,629.22x = 7,129,526.21
  5. Step 5: Solve for x
    x = 7,129,526.21/2,629.22
  6. Step 6: Final answer
    x = 2,711.65

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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.