Home / 4,078.89-6,118.25-1,305.55

Finding the Fourth Proportional to 4,078.89, 6,118.25 and 1,305.55

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Solution

The fourth proportional to 4,078.89, 6,118.25 and 1,305.55 is: 1,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.89 : 6,118.25 = 1,305.55 : x
  2. Step 2: Convert to fraction form
    4,078.89/6,118.25 = 1,305.55/x
  3. Step 3: Cross multiply
    4,078.89x = 6,118.25 × 1,305.55
  4. Step 4: Simplify right side
    4,078.89x = 7,987,682.41
  5. Step 5: Solve for x
    x = 7,987,682.41/4,078.89
  6. Step 6: Final answer
    x = 1,958.30

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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.