Home / 6,078.54-9,119.22-1,918.96

Finding the Fourth Proportional to 6,078.54, 9,119.22 and 1,918.96

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Solution

The fourth proportional to 6,078.54, 9,119.22 and 1,918.96 is: 2,878.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.54 : 9,119.22 = 1,918.96 : x
  2. Step 2: Convert to fraction form
    6,078.54/9,119.22 = 1,918.96/x
  3. Step 3: Cross multiply
    6,078.54x = 9,119.22 × 1,918.96
  4. Step 4: Simplify right side
    6,078.54x = 17,499,388.42
  5. Step 5: Solve for x
    x = 17,499,388.42/6,078.54
  6. Step 6: Final answer
    x = 2,878.88

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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.