Home / 6,078.78-9,121.68-3,305.34

Finding the Fourth Proportional to 6,078.78, 9,121.68 and 3,305.34

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Solution

The fourth proportional to 6,078.78, 9,121.68 and 3,305.34 is: 4,959.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.78 : 9,121.68 = 3,305.34 : x
  2. Step 2: Convert to fraction form
    6,078.78/9,121.68 = 3,305.34/x
  3. Step 3: Cross multiply
    6,078.78x = 9,121.68 × 3,305.34
  4. Step 4: Simplify right side
    6,078.78x = 30,150,253.77
  5. Step 5: Solve for x
    x = 30,150,253.77/6,078.78
  6. Step 6: Final answer
    x = 4,959.92

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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.