Home / 6,680.76-10,015.72-2,788.08

Finding the Fourth Proportional to 6,680.76, 10,015.72 and 2,788.08

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Solution

The fourth proportional to 6,680.76, 10,015.72 and 2,788.08 is: 4,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.76 : 10,015.72 = 2,788.08 : x
  2. Step 2: Convert to fraction form
    6,680.76/10,015.72 = 2,788.08/x
  3. Step 3: Cross multiply
    6,680.76x = 10,015.72 × 2,788.08
  4. Step 4: Simplify right side
    6,680.76x = 27,924,628.62
  5. Step 5: Solve for x
    x = 27,924,628.62/6,680.76
  6. Step 6: Final answer
    x = 4,179.86

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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.