Home / 5,478.39-8,209.44-3,284.55

Finding the Fourth Proportional to 5,478.39, 8,209.44 and 3,284.55

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Solution

The fourth proportional to 5,478.39, 8,209.44 and 3,284.55 is: 4,921.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.39 : 8,209.44 = 3,284.55 : x
  2. Step 2: Convert to fraction form
    5,478.39/8,209.44 = 3,284.55/x
  3. Step 3: Cross multiply
    5,478.39x = 8,209.44 × 3,284.55
  4. Step 4: Simplify right side
    5,478.39x = 26,964,316.15
  5. Step 5: Solve for x
    x = 26,964,316.15/5,478.39
  6. Step 6: Final answer
    x = 4,921.94

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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.