Home / 7,283.70-10,919.88-3,387.60

Finding the Fourth Proportional to 7,283.70, 10,919.88 and 3,387.60

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Solution

The fourth proportional to 7,283.70, 10,919.88 and 3,387.60 is: 5,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,283.70 : 10,919.88 = 3,387.60 : x
  2. Step 2: Convert to fraction form
    7,283.70/10,919.88 = 3,387.60/x
  3. Step 3: Cross multiply
    7,283.70x = 10,919.88 × 3,387.60
  4. Step 4: Simplify right side
    7,283.70x = 36,992,185.49
  5. Step 5: Solve for x
    x = 36,992,185.49/7,283.70
  6. Step 6: Final answer
    x = 5,078.76

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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.