Home / 3,540.89-4,886.70-1,969.09

Finding the Fourth Proportional to 3,540.89, 4,886.70 and 1,969.09

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Solution

The fourth proportional to 3,540.89, 4,886.70 and 1,969.09 is: 2,717.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.89 : 4,886.70 = 1,969.09 : x
  2. Step 2: Convert to fraction form
    3,540.89/4,886.70 = 1,969.09/x
  3. Step 3: Cross multiply
    3,540.89x = 4,886.70 × 1,969.09
  4. Step 4: Simplify right side
    3,540.89x = 9,622,352.10
  5. Step 5: Solve for x
    x = 9,622,352.10/3,540.89
  6. Step 6: Final answer
    x = 2,717.50

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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.