Home / 2,578.92-3,868.58-1,018.99

Finding the Fourth Proportional to 2,578.92, 3,868.58 and 1,018.99

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Solution

The fourth proportional to 2,578.92, 3,868.58 and 1,018.99 is: 1,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.92 : 3,868.58 = 1,018.99 : x
  2. Step 2: Convert to fraction form
    2,578.92/3,868.58 = 1,018.99/x
  3. Step 3: Cross multiply
    2,578.92x = 3,868.58 × 1,018.99
  4. Step 4: Simplify right side
    2,578.92x = 3,942,044.33
  5. Step 5: Solve for x
    x = 3,942,044.33/2,578.92
  6. Step 6: Final answer
    x = 1,528.56

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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.