Home / 6,742.78-10,107.37-2,788.58

Finding the Fourth Proportional to 6,742.78, 10,107.37 and 2,788.58

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Solution

The fourth proportional to 6,742.78, 10,107.37 and 2,788.58 is: 4,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742.78 : 10,107.37 = 2,788.58 : x
  2. Step 2: Convert to fraction form
    6,742.78/10,107.37 = 2,788.58/x
  3. Step 3: Cross multiply
    6,742.78x = 10,107.37 × 2,788.58
  4. Step 4: Simplify right side
    6,742.78x = 28,185,166.05
  5. Step 5: Solve for x
    x = 28,185,166.05/6,742.78
  6. Step 6: Final answer
    x = 4,180.05

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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.