Home / 3,611.87-4,980.93-2,195.79

Finding the Fourth Proportional to 3,611.87, 4,980.93 and 2,195.79

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Solution

The fourth proportional to 3,611.87, 4,980.93 and 2,195.79 is: 3,028.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.87 : 4,980.93 = 2,195.79 : x
  2. Step 2: Convert to fraction form
    3,611.87/4,980.93 = 2,195.79/x
  3. Step 3: Cross multiply
    3,611.87x = 4,980.93 × 2,195.79
  4. Step 4: Simplify right side
    3,611.87x = 10,937,076.28
  5. Step 5: Solve for x
    x = 10,937,076.28/3,611.87
  6. Step 6: Final answer
    x = 3,028.09

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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.