Home / 3,171.45-4,376.44-1,755.11

Finding the Fourth Proportional to 3,171.45, 4,376.44 and 1,755.11

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Solution

The fourth proportional to 3,171.45, 4,376.44 and 1,755.11 is: 2,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.45 : 4,376.44 = 1,755.11 : x
  2. Step 2: Convert to fraction form
    3,171.45/4,376.44 = 1,755.11/x
  3. Step 3: Cross multiply
    3,171.45x = 4,376.44 × 1,755.11
  4. Step 4: Simplify right side
    3,171.45x = 7,681,122.67
  5. Step 5: Solve for x
    x = 7,681,122.67/3,171.45
  6. Step 6: Final answer
    x = 2,421.96

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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.