Home / 2,245.66-3,368.60-1,321.66

Finding the Fourth Proportional to 2,245.66, 3,368.60 and 1,321.66

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Solution

The fourth proportional to 2,245.66, 3,368.60 and 1,321.66 is: 1,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.66 : 3,368.60 = 1,321.66 : x
  2. Step 2: Convert to fraction form
    2,245.66/3,368.60 = 1,321.66/x
  3. Step 3: Cross multiply
    2,245.66x = 3,368.60 × 1,321.66
  4. Step 4: Simplify right side
    2,245.66x = 4,452,143.88
  5. Step 5: Solve for x
    x = 4,452,143.88/2,245.66
  6. Step 6: Final answer
    x = 1,982.55

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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.