Home / 3,871.13-5,806.60-1,372.28

Finding the Fourth Proportional to 3,871.13, 5,806.60 and 1,372.28

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Solution

The fourth proportional to 3,871.13, 5,806.60 and 1,372.28 is: 2,058.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.13 : 5,806.60 = 1,372.28 : x
  2. Step 2: Convert to fraction form
    3,871.13/5,806.60 = 1,372.28/x
  3. Step 3: Cross multiply
    3,871.13x = 5,806.60 × 1,372.28
  4. Step 4: Simplify right side
    3,871.13x = 7,968,292.13
  5. Step 5: Solve for x
    x = 7,968,292.13/3,871.13
  6. Step 6: Final answer
    x = 2,058.39

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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.