Home / 2,529.50-3,794.51-680.80

Finding the Fourth Proportional to 2,529.50, 3,794.51 and 680.80

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Solution

The fourth proportional to 2,529.50, 3,794.51 and 680.80 is: 1,021.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.50 : 3,794.51 = 680.80 : x
  2. Step 2: Convert to fraction form
    2,529.50/3,794.51 = 680.80/x
  3. Step 3: Cross multiply
    2,529.50x = 3,794.51 × 680.80
  4. Step 4: Simplify right side
    2,529.50x = 2,583,280.03
  5. Step 5: Solve for x
    x = 2,583,280.03/2,529.50
  6. Step 6: Final answer
    x = 1,021.26

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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.