Home / 5,805.19-8,013.62-3,919.33

Finding the Fourth Proportional to 5,805.19, 8,013.62 and 3,919.33

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Solution

The fourth proportional to 5,805.19, 8,013.62 and 3,919.33 is: 5,410.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.19 : 8,013.62 = 3,919.33 : x
  2. Step 2: Convert to fraction form
    5,805.19/8,013.62 = 3,919.33/x
  3. Step 3: Cross multiply
    5,805.19x = 8,013.62 × 3,919.33
  4. Step 4: Simplify right side
    5,805.19x = 31,408,033.74
  5. Step 5: Solve for x
    x = 31,408,033.74/5,805.19
  6. Step 6: Final answer
    x = 5,410.33

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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.