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Finding the Fourth Proportional to 2,249.86, 3,373.46 and 768.55

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Solution

The fourth proportional to 2,249.86, 3,373.46 and 768.55 is: 1,152.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,249.86 : 3,373.46 = 768.55 : x
  2. Step 2: Convert to fraction form
    2,249.86/3,373.46 = 768.55/x
  3. Step 3: Cross multiply
    2,249.86x = 3,373.46 × 768.55
  4. Step 4: Simplify right side
    2,249.86x = 2,592,668.84
  5. Step 5: Solve for x
    x = 2,592,668.84/2,249.86
  6. Step 6: Final answer
    x = 1,152.37

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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.