Home / 3,815.75-5,723.06-1,317.33

Finding the Fourth Proportional to 3,815.75, 5,723.06 and 1,317.33

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Solution

The fourth proportional to 3,815.75, 5,723.06 and 1,317.33 is: 1,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.75 : 5,723.06 = 1,317.33 : x
  2. Step 2: Convert to fraction form
    3,815.75/5,723.06 = 1,317.33/x
  3. Step 3: Cross multiply
    3,815.75x = 5,723.06 × 1,317.33
  4. Step 4: Simplify right side
    3,815.75x = 7,539,152.04
  5. Step 5: Solve for x
    x = 7,539,152.04/3,815.75
  6. Step 6: Final answer
    x = 1,975.80

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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.