Home / 3,918.92-5,871.10-1,972.48

Finding the Fourth Proportional to 3,918.92, 5,871.10 and 1,972.48

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Solution

The fourth proportional to 3,918.92, 5,871.10 and 1,972.48 is: 2,955.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.92 : 5,871.10 = 1,972.48 : x
  2. Step 2: Convert to fraction form
    3,918.92/5,871.10 = 1,972.48/x
  3. Step 3: Cross multiply
    3,918.92x = 5,871.10 × 1,972.48
  4. Step 4: Simplify right side
    3,918.92x = 11,580,627.33
  5. Step 5: Solve for x
    x = 11,580,627.33/3,918.92
  6. Step 6: Final answer
    x = 2,955.06

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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.