Home / 3,853.08-5,778.26-1,387.25

Finding the Fourth Proportional to 3,853.08, 5,778.26 and 1,387.25

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Solution

The fourth proportional to 3,853.08, 5,778.26 and 1,387.25 is: 2,080.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.08 : 5,778.26 = 1,387.25 : x
  2. Step 2: Convert to fraction form
    3,853.08/5,778.26 = 1,387.25/x
  3. Step 3: Cross multiply
    3,853.08x = 5,778.26 × 1,387.25
  4. Step 4: Simplify right side
    3,853.08x = 8,015,855.36
  5. Step 5: Solve for x
    x = 8,015,855.36/3,853.08
  6. Step 6: Final answer
    x = 2,080.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.