Home / 3,919.77-5,877.91-1,838.09

Finding the Fourth Proportional to 3,919.77, 5,877.91 and 1,838.09

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Solution

The fourth proportional to 3,919.77, 5,877.91 and 1,838.09 is: 2,756.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.77 : 5,877.91 = 1,838.09 : x
  2. Step 2: Convert to fraction form
    3,919.77/5,877.91 = 1,838.09/x
  3. Step 3: Cross multiply
    3,919.77x = 5,877.91 × 1,838.09
  4. Step 4: Simplify right side
    3,919.77x = 10,804,144.58
  5. Step 5: Solve for x
    x = 10,804,144.58/3,919.77
  6. Step 6: Final answer
    x = 2,756.32

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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.