Home / 3,679.02-5,074.79-2,185.92

Finding the Fourth Proportional to 3,679.02, 5,074.79 and 2,185.92

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Solution

The fourth proportional to 3,679.02, 5,074.79 and 2,185.92 is: 3,015.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.02 : 5,074.79 = 2,185.92 : x
  2. Step 2: Convert to fraction form
    3,679.02/5,074.79 = 2,185.92/x
  3. Step 3: Cross multiply
    3,679.02x = 5,074.79 × 2,185.92
  4. Step 4: Simplify right side
    3,679.02x = 11,093,074.03
  5. Step 5: Solve for x
    x = 11,093,074.03/3,679.02
  6. Step 6: Final answer
    x = 3,015.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.