Home / 3,015.43-4,519.49-1,280.41

Finding the Fourth Proportional to 3,015.43, 4,519.49 and 1,280.41

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Solution

The fourth proportional to 3,015.43, 4,519.49 and 1,280.41 is: 1,919.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.43 : 4,519.49 = 1,280.41 : x
  2. Step 2: Convert to fraction form
    3,015.43/4,519.49 = 1,280.41/x
  3. Step 3: Cross multiply
    3,015.43x = 4,519.49 × 1,280.41
  4. Step 4: Simplify right side
    3,015.43x = 5,786,800.19
  5. Step 5: Solve for x
    x = 5,786,800.19/3,015.43
  6. Step 6: Final answer
    x = 1,919.06

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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.