Home / 3,478.73-5,214.45-2,162.48

Finding the Fourth Proportional to 3,478.73, 5,214.45 and 2,162.48

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Solution

The fourth proportional to 3,478.73, 5,214.45 and 2,162.48 is: 3,241.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.73 : 5,214.45 = 2,162.48 : x
  2. Step 2: Convert to fraction form
    3,478.73/5,214.45 = 2,162.48/x
  3. Step 3: Cross multiply
    3,478.73x = 5,214.45 × 2,162.48
  4. Step 4: Simplify right side
    3,478.73x = 11,276,143.84
  5. Step 5: Solve for x
    x = 11,276,143.84/3,478.73
  6. Step 6: Final answer
    x = 3,241.45

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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.