Home / 3,777.21-5,212.91-2,098.77

Finding the Fourth Proportional to 3,777.21, 5,212.91 and 2,098.77

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Solution

The fourth proportional to 3,777.21, 5,212.91 and 2,098.77 is: 2,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.21 : 5,212.91 = 2,098.77 : x
  2. Step 2: Convert to fraction form
    3,777.21/5,212.91 = 2,098.77/x
  3. Step 3: Cross multiply
    3,777.21x = 5,212.91 × 2,098.77
  4. Step 4: Simplify right side
    3,777.21x = 10,940,688.63
  5. Step 5: Solve for x
    x = 10,940,688.63/3,777.21
  6. Step 6: Final answer
    x = 2,896.50

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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.