Home / 3,917.61-5,876.37-1,969.38

Finding the Fourth Proportional to 3,917.61, 5,876.37 and 1,969.38

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Solution

The fourth proportional to 3,917.61, 5,876.37 and 1,969.38 is: 2,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.61 : 5,876.37 = 1,969.38 : x
  2. Step 2: Convert to fraction form
    3,917.61/5,876.37 = 1,969.38/x
  3. Step 3: Cross multiply
    3,917.61x = 5,876.37 × 1,969.38
  4. Step 4: Simplify right side
    3,917.61x = 11,572,805.55
  5. Step 5: Solve for x
    x = 11,572,805.55/3,917.61
  6. Step 6: Final answer
    x = 2,954.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.