Home / 3,941.81-5,439.70-2,173.46

Finding the Fourth Proportional to 3,941.81, 5,439.70 and 2,173.46

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Solution

The fourth proportional to 3,941.81, 5,439.70 and 2,173.46 is: 2,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.81 : 5,439.70 = 2,173.46 : x
  2. Step 2: Convert to fraction form
    3,941.81/5,439.70 = 2,173.46/x
  3. Step 3: Cross multiply
    3,941.81x = 5,439.70 × 2,173.46
  4. Step 4: Simplify right side
    3,941.81x = 11,822,945.88
  5. Step 5: Solve for x
    x = 11,822,945.88/3,941.81
  6. Step 6: Final answer
    x = 2,999.37

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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.