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Finding the Fourth Proportional to 3,959.22, 5,938.84 and 1,362.16

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Solution

The fourth proportional to 3,959.22, 5,938.84 and 1,362.16 is: 2,043.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.22 : 5,938.84 = 1,362.16 : x
  2. Step 2: Convert to fraction form
    3,959.22/5,938.84 = 1,362.16/x
  3. Step 3: Cross multiply
    3,959.22x = 5,938.84 × 1,362.16
  4. Step 4: Simplify right side
    3,959.22x = 8,089,650.29
  5. Step 5: Solve for x
    x = 8,089,650.29/3,959.22
  6. Step 6: Final answer
    x = 2,043.24

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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.