Home / 3,286.89-4,528.20-2,290.36

Finding the Fourth Proportional to 3,286.89, 4,528.20 and 2,290.36

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Solution

The fourth proportional to 3,286.89, 4,528.20 and 2,290.36 is: 3,155.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.89 : 4,528.20 = 2,290.36 : x
  2. Step 2: Convert to fraction form
    3,286.89/4,528.20 = 2,290.36/x
  3. Step 3: Cross multiply
    3,286.89x = 4,528.20 × 2,290.36
  4. Step 4: Simplify right side
    3,286.89x = 10,371,208.15
  5. Step 5: Solve for x
    x = 10,371,208.15/3,286.89
  6. Step 6: Final answer
    x = 3,155.33

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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.