Home / 3,919.14-5,878.11-1,145.06

Finding the Fourth Proportional to 3,919.14, 5,878.11 and 1,145.06

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Solution

The fourth proportional to 3,919.14, 5,878.11 and 1,145.06 is: 1,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.14 : 5,878.11 = 1,145.06 : x
  2. Step 2: Convert to fraction form
    3,919.14/5,878.11 = 1,145.06/x
  3. Step 3: Cross multiply
    3,919.14x = 5,878.11 × 1,145.06
  4. Step 4: Simplify right side
    3,919.14x = 6,730,788.64
  5. Step 5: Solve for x
    x = 6,730,788.64/3,919.14
  6. Step 6: Final answer
    x = 1,717.41

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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.