Home / 2,021.09-3,029.40-788.27

Finding the Fourth Proportional to 2,021.09, 3,029.40 and 788.27

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Solution

The fourth proportional to 2,021.09, 3,029.40 and 788.27 is: 1,181.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.09 : 3,029.40 = 788.27 : x
  2. Step 2: Convert to fraction form
    2,021.09/3,029.40 = 788.27/x
  3. Step 3: Cross multiply
    2,021.09x = 3,029.40 × 788.27
  4. Step 4: Simplify right side
    2,021.09x = 2,387,969.99
  5. Step 5: Solve for x
    x = 2,387,969.99/2,021.09
  6. Step 6: Final answer
    x = 1,181.53

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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.