Home / 6,627.78-9,940.47-2,678.85

Finding the Fourth Proportional to 6,627.78, 9,940.47 and 2,678.85

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Solution

The fourth proportional to 6,627.78, 9,940.47 and 2,678.85 is: 4,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627.78 : 9,940.47 = 2,678.85 : x
  2. Step 2: Convert to fraction form
    6,627.78/9,940.47 = 2,678.85/x
  3. Step 3: Cross multiply
    6,627.78x = 9,940.47 × 2,678.85
  4. Step 4: Simplify right side
    6,627.78x = 26,629,028.06
  5. Step 5: Solve for x
    x = 26,629,028.06/6,627.78
  6. Step 6: Final answer
    x = 4,017.79

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1.5x scale

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.