Home / 3,171.90-4,379.91-1,993.35

Finding the Fourth Proportional to 3,171.90, 4,379.91 and 1,993.35

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Solution

The fourth proportional to 3,171.90, 4,379.91 and 1,993.35 is: 2,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.90 : 4,379.91 = 1,993.35 : x
  2. Step 2: Convert to fraction form
    3,171.90/4,379.91 = 1,993.35/x
  3. Step 3: Cross multiply
    3,171.90x = 4,379.91 × 1,993.35
  4. Step 4: Simplify right side
    3,171.90x = 8,730,693.60
  5. Step 5: Solve for x
    x = 8,730,693.60/3,171.90
  6. Step 6: Final answer
    x = 2,752.51

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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.