Home / 3,782.50-5,674.26-1,185.64

Finding the Fourth Proportional to 3,782.50, 5,674.26 and 1,185.64

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Solution

The fourth proportional to 3,782.50, 5,674.26 and 1,185.64 is: 1,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.50 : 5,674.26 = 1,185.64 : x
  2. Step 2: Convert to fraction form
    3,782.50/5,674.26 = 1,185.64/x
  3. Step 3: Cross multiply
    3,782.50x = 5,674.26 × 1,185.64
  4. Step 4: Simplify right side
    3,782.50x = 6,727,629.63
  5. Step 5: Solve for x
    x = 6,727,629.63/3,782.50
  6. Step 6: Final answer
    x = 1,778.62

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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.