Home / 2,214.03-3,318.71-828.39

Finding the Fourth Proportional to 2,214.03, 3,318.71 and 828.39

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Solution

The fourth proportional to 2,214.03, 3,318.71 and 828.39 is: 1,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.03 : 3,318.71 = 828.39 : x
  2. Step 2: Convert to fraction form
    2,214.03/3,318.71 = 828.39/x
  3. Step 3: Cross multiply
    2,214.03x = 3,318.71 × 828.39
  4. Step 4: Simplify right side
    2,214.03x = 2,749,182.03
  5. Step 5: Solve for x
    x = 2,749,182.03/2,214.03
  6. Step 6: Final answer
    x = 1,241.71

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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.