Home / 7,189.00-10,787.60-2,805.44

Finding the Fourth Proportional to 7,189.00, 10,787.60 and 2,805.44

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Solution

The fourth proportional to 7,189.00, 10,787.60 and 2,805.44 is: 4,209.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.00 : 10,787.60 = 2,805.44 : x
  2. Step 2: Convert to fraction form
    7,189.00/10,787.60 = 2,805.44/x
  3. Step 3: Cross multiply
    7,189.00x = 10,787.60 × 2,805.44
  4. Step 4: Simplify right side
    7,189.00x = 30,263,917.62
  5. Step 5: Solve for x
    x = 30,263,917.62/7,189.00
  6. Step 6: Final answer
    x = 4,209.75

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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.