Home / 5,418.50-8,128.20-1,522.94

Finding the Fourth Proportional to 5,418.50, 8,128.20 and 1,522.94

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Solution

The fourth proportional to 5,418.50, 8,128.20 and 1,522.94 is: 2,284.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.50 : 8,128.20 = 1,522.94 : x
  2. Step 2: Convert to fraction form
    5,418.50/8,128.20 = 1,522.94/x
  3. Step 3: Cross multiply
    5,418.50x = 8,128.20 × 1,522.94
  4. Step 4: Simplify right side
    5,418.50x = 12,378,760.91
  5. Step 5: Solve for x
    x = 12,378,760.91/5,418.50
  6. Step 6: Final answer
    x = 2,284.54

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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.