Home / 2,611.96-3,919.12-1,297.03

Finding the Fourth Proportional to 2,611.96, 3,919.12 and 1,297.03

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Solution

The fourth proportional to 2,611.96, 3,919.12 and 1,297.03 is: 1,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.96 : 3,919.12 = 1,297.03 : x
  2. Step 2: Convert to fraction form
    2,611.96/3,919.12 = 1,297.03/x
  3. Step 3: Cross multiply
    2,611.96x = 3,919.12 × 1,297.03
  4. Step 4: Simplify right side
    2,611.96x = 5,083,216.21
  5. Step 5: Solve for x
    x = 5,083,216.21/2,611.96
  6. Step 6: Final answer
    x = 1,946.13

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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.