Home / 2,529.21-3,786.10-2,205.21

Finding the Fourth Proportional to 2,529.21, 3,786.10 and 2,205.21

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Solution

The fourth proportional to 2,529.21, 3,786.10 and 2,205.21 is: 3,301.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.21 : 3,786.10 = 2,205.21 : x
  2. Step 2: Convert to fraction form
    2,529.21/3,786.10 = 2,205.21/x
  3. Step 3: Cross multiply
    2,529.21x = 3,786.10 × 2,205.21
  4. Step 4: Simplify right side
    2,529.21x = 8,349,145.58
  5. Step 5: Solve for x
    x = 8,349,145.58/2,529.21
  6. Step 6: Final answer
    x = 3,301.09

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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.