Home / 3,941.02-5,438.66-2,172.66

Finding the Fourth Proportional to 3,941.02, 5,438.66 and 2,172.66

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Solution

The fourth proportional to 3,941.02, 5,438.66 and 2,172.66 is: 2,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.02 : 5,438.66 = 2,172.66 : x
  2. Step 2: Convert to fraction form
    3,941.02/5,438.66 = 2,172.66/x
  3. Step 3: Cross multiply
    3,941.02x = 5,438.66 × 2,172.66
  4. Step 4: Simplify right side
    3,941.02x = 11,816,327.78
  5. Step 5: Solve for x
    x = 11,816,327.78/3,941.02
  6. Step 6: Final answer
    x = 2,998.29

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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.