Home / 2,020.86-3,032.51-788.85

Finding the Fourth Proportional to 2,020.86, 3,032.51 and 788.85

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Solution

The fourth proportional to 2,020.86, 3,032.51 and 788.85 is: 1,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.86 : 3,032.51 = 788.85 : x
  2. Step 2: Convert to fraction form
    2,020.86/3,032.51 = 788.85/x
  3. Step 3: Cross multiply
    2,020.86x = 3,032.51 × 788.85
  4. Step 4: Simplify right side
    2,020.86x = 2,392,191.57
  5. Step 5: Solve for x
    x = 2,392,191.57/2,020.86
  6. Step 6: Final answer
    x = 1,183.75

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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.