Home / 3,540.38-4,885.72-1,968.77

Finding the Fourth Proportional to 3,540.38, 4,885.72 and 1,968.77

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Solution

The fourth proportional to 3,540.38, 4,885.72 and 1,968.77 is: 2,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.38 : 4,885.72 = 1,968.77 : x
  2. Step 2: Convert to fraction form
    3,540.38/4,885.72 = 1,968.77/x
  3. Step 3: Cross multiply
    3,540.38x = 4,885.72 × 1,968.77
  4. Step 4: Simplify right side
    3,540.38x = 9,618,866.26
  5. Step 5: Solve for x
    x = 9,618,866.26/3,540.38
  6. Step 6: Final answer
    x = 2,716.91

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1.5x scale

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.