Home / 2,961.90-4,087.53-1,965.47

Finding the Fourth Proportional to 2,961.90, 4,087.53 and 1,965.47

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Solution

The fourth proportional to 2,961.90, 4,087.53 and 1,965.47 is: 2,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.90 : 4,087.53 = 1,965.47 : x
  2. Step 2: Convert to fraction form
    2,961.90/4,087.53 = 1,965.47/x
  3. Step 3: Cross multiply
    2,961.90x = 4,087.53 × 1,965.47
  4. Step 4: Simplify right side
    2,961.90x = 8,033,897.15
  5. Step 5: Solve for x
    x = 8,033,897.15/2,961.90
  6. Step 6: Final answer
    x = 2,712.41

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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.