Home / 5,078.25-7,619.66-3,228.89

Finding the Fourth Proportional to 5,078.25, 7,619.66 and 3,228.89

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Solution

The fourth proportional to 5,078.25, 7,619.66 and 3,228.89 is: 4,844.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.25 : 7,619.66 = 3,228.89 : x
  2. Step 2: Convert to fraction form
    5,078.25/7,619.66 = 3,228.89/x
  3. Step 3: Cross multiply
    5,078.25x = 7,619.66 × 3,228.89
  4. Step 4: Simplify right side
    5,078.25x = 24,602,989.73
  5. Step 5: Solve for x
    x = 24,602,989.73/5,078.25
  6. Step 6: Final answer
    x = 4,844.78

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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.