Home / 4,079.87-6,120.26-1,305.89

Finding the Fourth Proportional to 4,079.87, 6,120.26 and 1,305.89

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Solution

The fourth proportional to 4,079.87, 6,120.26 and 1,305.89 is: 1,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.87 : 6,120.26 = 1,305.89 : x
  2. Step 2: Convert to fraction form
    4,079.87/6,120.26 = 1,305.89/x
  3. Step 3: Cross multiply
    4,079.87x = 6,120.26 × 1,305.89
  4. Step 4: Simplify right side
    4,079.87x = 7,992,386.33
  5. Step 5: Solve for x
    x = 7,992,386.33/4,079.87
  6. Step 6: Final answer
    x = 1,958.98

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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.