Home / 3,286.91-4,528.16-2,290.41

Finding the Fourth Proportional to 3,286.91, 4,528.16 and 2,290.41

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Solution

The fourth proportional to 3,286.91, 4,528.16 and 2,290.41 is: 3,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.91 : 4,528.16 = 2,290.41 : x
  2. Step 2: Convert to fraction form
    3,286.91/4,528.16 = 2,290.41/x
  3. Step 3: Cross multiply
    3,286.91x = 4,528.16 × 2,290.41
  4. Step 4: Simplify right side
    3,286.91x = 10,371,308.85
  5. Step 5: Solve for x
    x = 10,371,308.85/3,286.91
  6. Step 6: Final answer
    x = 3,155.34

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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.