Home / 3,539.89-4,885.32-1,968.09

Finding the Fourth Proportional to 3,539.89, 4,885.32 and 1,968.09

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Solution

The fourth proportional to 3,539.89, 4,885.32 and 1,968.09 is: 2,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.89 : 4,885.32 = 1,968.09 : x
  2. Step 2: Convert to fraction form
    3,539.89/4,885.32 = 1,968.09/x
  3. Step 3: Cross multiply
    3,539.89x = 4,885.32 × 1,968.09
  4. Step 4: Simplify right side
    3,539.89x = 9,614,749.44
  5. Step 5: Solve for x
    x = 9,614,749.44/3,539.89
  6. Step 6: Final answer
    x = 2,716.12

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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.