Home / 3,616.20-5,427.38-2,578.75

Finding the Fourth Proportional to 3,616.20, 5,427.38 and 2,578.75

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Solution

The fourth proportional to 3,616.20, 5,427.38 and 2,578.75 is: 3,870.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.20 : 5,427.38 = 2,578.75 : x
  2. Step 2: Convert to fraction form
    3,616.20/5,427.38 = 2,578.75/x
  3. Step 3: Cross multiply
    3,616.20x = 5,427.38 × 2,578.75
  4. Step 4: Simplify right side
    3,616.20x = 13,995,856.18
  5. Step 5: Solve for x
    x = 13,995,856.18/3,616.20
  6. Step 6: Final answer
    x = 3,870.32

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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.