Home / 2,860.73-4,290.49-808.25

Finding the Fourth Proportional to 2,860.73, 4,290.49 and 808.25

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Solution

The fourth proportional to 2,860.73, 4,290.49 and 808.25 is: 1,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.73 : 4,290.49 = 808.25 : x
  2. Step 2: Convert to fraction form
    2,860.73/4,290.49 = 808.25/x
  3. Step 3: Cross multiply
    2,860.73x = 4,290.49 × 808.25
  4. Step 4: Simplify right side
    2,860.73x = 3,467,788.54
  5. Step 5: Solve for x
    x = 3,467,788.54/2,860.73
  6. Step 6: Final answer
    x = 1,212.20

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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.