Home / 3,286.40-4,536.52-2,223.65

Finding the Fourth Proportional to 3,286.40, 4,536.52 and 2,223.65

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Solution

The fourth proportional to 3,286.40, 4,536.52 and 2,223.65 is: 3,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.40 : 4,536.52 = 2,223.65 : x
  2. Step 2: Convert to fraction form
    3,286.40/4,536.52 = 2,223.65/x
  3. Step 3: Cross multiply
    3,286.40x = 4,536.52 × 2,223.65
  4. Step 4: Simplify right side
    3,286.40x = 10,087,638.48
  5. Step 5: Solve for x
    x = 10,087,638.48/3,286.40
  6. Step 6: Final answer
    x = 3,069.51

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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.