Home / 2,791.21-4,187.73-1,403.83

Finding the Fourth Proportional to 2,791.21, 4,187.73 and 1,403.83

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Solution

The fourth proportional to 2,791.21, 4,187.73 and 1,403.83 is: 2,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.21 : 4,187.73 = 1,403.83 : x
  2. Step 2: Convert to fraction form
    2,791.21/4,187.73 = 1,403.83/x
  3. Step 3: Cross multiply
    2,791.21x = 4,187.73 × 1,403.83
  4. Step 4: Simplify right side
    2,791.21x = 5,878,853.99
  5. Step 5: Solve for x
    x = 5,878,853.99/2,791.21
  6. Step 6: Final answer
    x = 2,106.20

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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.