Home / 3,905.82-5,855.27-1,438.92

Finding the Fourth Proportional to 3,905.82, 5,855.27 and 1,438.92

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Solution

The fourth proportional to 3,905.82, 5,855.27 and 1,438.92 is: 2,157.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.82 : 5,855.27 = 1,438.92 : x
  2. Step 2: Convert to fraction form
    3,905.82/5,855.27 = 1,438.92/x
  3. Step 3: Cross multiply
    3,905.82x = 5,855.27 × 1,438.92
  4. Step 4: Simplify right side
    3,905.82x = 8,425,257.91
  5. Step 5: Solve for x
    x = 8,425,257.91/3,905.82
  6. Step 6: Final answer
    x = 2,157.10

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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.