Home / 3,921.18-5,871.73-2,164.23

Finding the Fourth Proportional to 3,921.18, 5,871.73 and 2,164.23

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Solution

The fourth proportional to 3,921.18, 5,871.73 and 2,164.23 is: 3,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.18 : 5,871.73 = 2,164.23 : x
  2. Step 2: Convert to fraction form
    3,921.18/5,871.73 = 2,164.23/x
  3. Step 3: Cross multiply
    3,921.18x = 5,871.73 × 2,164.23
  4. Step 4: Simplify right side
    3,921.18x = 12,707,774.22
  5. Step 5: Solve for x
    x = 12,707,774.22/3,921.18
  6. Step 6: Final answer
    x = 3,240.80

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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.