Home / 3,130.26-4,327.86-2,992.56

Finding the Fourth Proportional to 3,130.26, 4,327.86 and 2,992.56

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Solution

The fourth proportional to 3,130.26, 4,327.86 and 2,992.56 is: 4,137.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.26 : 4,327.86 = 2,992.56 : x
  2. Step 2: Convert to fraction form
    3,130.26/4,327.86 = 2,992.56/x
  3. Step 3: Cross multiply
    3,130.26x = 4,327.86 × 2,992.56
  4. Step 4: Simplify right side
    3,130.26x = 12,951,380.72
  5. Step 5: Solve for x
    x = 12,951,380.72/3,130.26
  6. Step 6: Final answer
    x = 4,137.48

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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.