Home / 3,142.25-4,336.44-1,745

Finding the Fourth Proportional to 3,142.25, 4,336.44 and 1,745

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Solution

The fourth proportional to 3,142.25, 4,336.44 and 1,745 is: 2,408.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.25 : 4,336.44 = 1,745 : x
  2. Step 2: Convert to fraction form
    3,142.25/4,336.44 = 1,745/x
  3. Step 3: Cross multiply
    3,142.25x = 4,336.44 × 1,745
  4. Step 4: Simplify right side
    3,142.25x = 7,567,087.80
  5. Step 5: Solve for x
    x = 7,567,087.80/3,142.25
  6. Step 6: Final answer
    x = 2,408.17

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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.