Home / 2,412.56-3,619.11-768.73

Finding the Fourth Proportional to 2,412.56, 3,619.11 and 768.73

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Solution

The fourth proportional to 2,412.56, 3,619.11 and 768.73 is: 1,153.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.56 : 3,619.11 = 768.73 : x
  2. Step 2: Convert to fraction form
    2,412.56/3,619.11 = 768.73/x
  3. Step 3: Cross multiply
    2,412.56x = 3,619.11 × 768.73
  4. Step 4: Simplify right side
    2,412.56x = 2,782,118.43
  5. Step 5: Solve for x
    x = 2,782,118.43/2,412.56
  6. Step 6: Final answer
    x = 1,153.18

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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.