Home / 2,215.81-3,323.72-1,229.23

Finding the Fourth Proportional to 2,215.81, 3,323.72 and 1,229.23

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Solution

The fourth proportional to 2,215.81, 3,323.72 and 1,229.23 is: 1,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.81 : 3,323.72 = 1,229.23 : x
  2. Step 2: Convert to fraction form
    2,215.81/3,323.72 = 1,229.23/x
  3. Step 3: Cross multiply
    2,215.81x = 3,323.72 × 1,229.23
  4. Step 4: Simplify right side
    2,215.81x = 4,085,616.34
  5. Step 5: Solve for x
    x = 4,085,616.34/2,215.81
  6. Step 6: Final answer
    x = 1,843.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.