Home / 3,270.96-4,906.78-1,421.54

Finding the Fourth Proportional to 3,270.96, 4,906.78 and 1,421.54

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Solution

The fourth proportional to 3,270.96, 4,906.78 and 1,421.54 is: 2,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.96 : 4,906.78 = 1,421.54 : x
  2. Step 2: Convert to fraction form
    3,270.96/4,906.78 = 1,421.54/x
  3. Step 3: Cross multiply
    3,270.96x = 4,906.78 × 1,421.54
  4. Step 4: Simplify right side
    3,270.96x = 6,975,184.04
  5. Step 5: Solve for x
    x = 6,975,184.04/3,270.96
  6. Step 6: Final answer
    x = 2,132.46

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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.