Home / 3,786.86-5,225.50-2,792.68

Finding the Fourth Proportional to 3,786.86, 5,225.50 and 2,792.68

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Solution

The fourth proportional to 3,786.86, 5,225.50 and 2,792.68 is: 3,853.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.86 : 5,225.50 = 2,792.68 : x
  2. Step 2: Convert to fraction form
    3,786.86/5,225.50 = 2,792.68/x
  3. Step 3: Cross multiply
    3,786.86x = 5,225.50 × 2,792.68
  4. Step 4: Simplify right side
    3,786.86x = 14,593,149.34
  5. Step 5: Solve for x
    x = 14,593,149.34/3,786.86
  6. Step 6: Final answer
    x = 3,853.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.