Home / 2,148.20-3,223.26-1,368

Finding the Fourth Proportional to 2,148.20, 3,223.26 and 1,368

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Solution

The fourth proportional to 2,148.20, 3,223.26 and 1,368 is: 2,052.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.20 : 3,223.26 = 1,368 : x
  2. Step 2: Convert to fraction form
    2,148.20/3,223.26 = 1,368/x
  3. Step 3: Cross multiply
    2,148.20x = 3,223.26 × 1,368
  4. Step 4: Simplify right side
    2,148.20x = 4,409,419.68
  5. Step 5: Solve for x
    x = 4,409,419.68/2,148.20
  6. Step 6: Final answer
    x = 2,052.61

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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.