Home / 3,540.63-4,886.07-1,968.72

Finding the Fourth Proportional to 3,540.63, 4,886.07 and 1,968.72

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Solution

The fourth proportional to 3,540.63, 4,886.07 and 1,968.72 is: 2,716.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.63 : 4,886.07 = 1,968.72 : x
  2. Step 2: Convert to fraction form
    3,540.63/4,886.07 = 1,968.72/x
  3. Step 3: Cross multiply
    3,540.63x = 4,886.07 × 1,968.72
  4. Step 4: Simplify right side
    3,540.63x = 9,619,303.73
  5. Step 5: Solve for x
    x = 9,619,303.73/3,540.63
  6. Step 6: Final answer
    x = 2,716.83

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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.