Home / 3,257.12-4,493.61-2,138.68

Finding the Fourth Proportional to 3,257.12, 4,493.61 and 2,138.68

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Solution

The fourth proportional to 3,257.12, 4,493.61 and 2,138.68 is: 2,950.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257.12 : 4,493.61 = 2,138.68 : x
  2. Step 2: Convert to fraction form
    3,257.12/4,493.61 = 2,138.68/x
  3. Step 3: Cross multiply
    3,257.12x = 4,493.61 × 2,138.68
  4. Step 4: Simplify right side
    3,257.12x = 9,610,382.60
  5. Step 5: Solve for x
    x = 9,610,382.60/3,257.12
  6. Step 6: Final answer
    x = 2,950.57

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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.