Home / 2,759.96-4,130.82-1,720.73

Finding the Fourth Proportional to 2,759.96, 4,130.82 and 1,720.73

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Solution

The fourth proportional to 2,759.96, 4,130.82 and 1,720.73 is: 2,575.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.96 : 4,130.82 = 1,720.73 : x
  2. Step 2: Convert to fraction form
    2,759.96/4,130.82 = 1,720.73/x
  3. Step 3: Cross multiply
    2,759.96x = 4,130.82 × 1,720.73
  4. Step 4: Simplify right side
    2,759.96x = 7,108,005.24
  5. Step 5: Solve for x
    x = 7,108,005.24/2,759.96
  6. Step 6: Final answer
    x = 2,575.41

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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.