Home / 3,616.45-5,427.75-2,578.99

Finding the Fourth Proportional to 3,616.45, 5,427.75 and 2,578.99

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Solution

The fourth proportional to 3,616.45, 5,427.75 and 2,578.99 is: 3,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.45 : 5,427.75 = 2,578.99 : x
  2. Step 2: Convert to fraction form
    3,616.45/5,427.75 = 2,578.99/x
  3. Step 3: Cross multiply
    3,616.45x = 5,427.75 × 2,578.99
  4. Step 4: Simplify right side
    3,616.45x = 13,998,112.97
  5. Step 5: Solve for x
    x = 13,998,112.97/3,616.45
  6. Step 6: Final answer
    x = 3,870.68

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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.