Home / 3,919.37-5,878.44-1,145.39

Finding the Fourth Proportional to 3,919.37, 5,878.44 and 1,145.39

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Solution

The fourth proportional to 3,919.37, 5,878.44 and 1,145.39 is: 1,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.37 : 5,878.44 = 1,145.39 : x
  2. Step 2: Convert to fraction form
    3,919.37/5,878.44 = 1,145.39/x
  3. Step 3: Cross multiply
    3,919.37x = 5,878.44 × 1,145.39
  4. Step 4: Simplify right side
    3,919.37x = 6,733,077.00
  5. Step 5: Solve for x
    x = 6,733,077.00/3,919.37
  6. Step 6: Final answer
    x = 1,717.90

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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.