Home / 3,540.40-4,885.56-1,968.56

Finding the Fourth Proportional to 3,540.40, 4,885.56 and 1,968.56

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Solution

The fourth proportional to 3,540.40, 4,885.56 and 1,968.56 is: 2,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.40 : 4,885.56 = 1,968.56 : x
  2. Step 2: Convert to fraction form
    3,540.40/4,885.56 = 1,968.56/x
  3. Step 3: Cross multiply
    3,540.40x = 4,885.56 × 1,968.56
  4. Step 4: Simplify right side
    3,540.40x = 9,617,517.99
  5. Step 5: Solve for x
    x = 9,617,517.99/3,540.40
  6. Step 6: Final answer
    x = 2,716.51

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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.