Home / 5,482.40-8,212.80-3,284.60

Finding the Fourth Proportional to 5,482.40, 8,212.80 and 3,284.60

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Solution

The fourth proportional to 5,482.40, 8,212.80 and 3,284.60 is: 4,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,482.40 : 8,212.80 = 3,284.60 : x
  2. Step 2: Convert to fraction form
    5,482.40/8,212.80 = 3,284.60/x
  3. Step 3: Cross multiply
    5,482.40x = 8,212.80 × 3,284.60
  4. Step 4: Simplify right side
    5,482.40x = 26,975,762.88
  5. Step 5: Solve for x
    x = 26,975,762.88/5,482.40
  6. Step 6: Final answer
    x = 4,920.43

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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.