Home / 3,178.45-4,763.49-1,531.99

Finding the Fourth Proportional to 3,178.45, 4,763.49 and 1,531.99

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Solution

The fourth proportional to 3,178.45, 4,763.49 and 1,531.99 is: 2,295.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.45 : 4,763.49 = 1,531.99 : x
  2. Step 2: Convert to fraction form
    3,178.45/4,763.49 = 1,531.99/x
  3. Step 3: Cross multiply
    3,178.45x = 4,763.49 × 1,531.99
  4. Step 4: Simplify right side
    3,178.45x = 7,297,619.05
  5. Step 5: Solve for x
    x = 7,297,619.05/3,178.45
  6. Step 6: Final answer
    x = 2,295.97

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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.