Home / 2,107.21-3,162.40-792.26

Finding the Fourth Proportional to 2,107.21, 3,162.40 and 792.26

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Solution

The fourth proportional to 2,107.21, 3,162.40 and 792.26 is: 1,188.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.21 : 3,162.40 = 792.26 : x
  2. Step 2: Convert to fraction form
    2,107.21/3,162.40 = 792.26/x
  3. Step 3: Cross multiply
    2,107.21x = 3,162.40 × 792.26
  4. Step 4: Simplify right side
    2,107.21x = 2,505,438.76
  5. Step 5: Solve for x
    x = 2,505,438.76/2,107.21
  6. Step 6: Final answer
    x = 1,188.98

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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.