Home / 3,617.76-4,989.87-2,768.92

Finding the Fourth Proportional to 3,617.76, 4,989.87 and 2,768.92

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Solution

The fourth proportional to 3,617.76, 4,989.87 and 2,768.92 is: 3,819.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.76 : 4,989.87 = 2,768.92 : x
  2. Step 2: Convert to fraction form
    3,617.76/4,989.87 = 2,768.92/x
  3. Step 3: Cross multiply
    3,617.76x = 4,989.87 × 2,768.92
  4. Step 4: Simplify right side
    3,617.76x = 13,816,550.84
  5. Step 5: Solve for x
    x = 13,816,550.84/3,617.76
  6. Step 6: Final answer
    x = 3,819.09

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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.