Home / 2,616.90-3,928.11-1,579.44

Finding the Fourth Proportional to 2,616.90, 3,928.11 and 1,579.44

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Solution

The fourth proportional to 2,616.90, 3,928.11 and 1,579.44 is: 2,370.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.90 : 3,928.11 = 1,579.44 : x
  2. Step 2: Convert to fraction form
    2,616.90/3,928.11 = 1,579.44/x
  3. Step 3: Cross multiply
    2,616.90x = 3,928.11 × 1,579.44
  4. Step 4: Simplify right side
    2,616.90x = 6,204,214.06
  5. Step 5: Solve for x
    x = 6,204,214.06/2,616.90
  6. Step 6: Final answer
    x = 2,370.83

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1.5x scale

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.