Home / 3,540.51-4,885.79-1,968.57

Finding the Fourth Proportional to 3,540.51, 4,885.79 and 1,968.57

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Solution

The fourth proportional to 3,540.51, 4,885.79 and 1,968.57 is: 2,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.51 : 4,885.79 = 1,968.57 : x
  2. Step 2: Convert to fraction form
    3,540.51/4,885.79 = 1,968.57/x
  3. Step 3: Cross multiply
    3,540.51x = 4,885.79 × 1,968.57
  4. Step 4: Simplify right side
    3,540.51x = 9,618,009.78
  5. Step 5: Solve for x
    x = 9,618,009.78/3,540.51
  6. Step 6: Final answer
    x = 2,716.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.