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Finding the Fourth Proportional to 3,959.19, 5,938.72 and 1,362.06

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Solution

The fourth proportional to 3,959.19, 5,938.72 and 1,362.06 is: 2,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.19 : 5,938.72 = 1,362.06 : x
  2. Step 2: Convert to fraction form
    3,959.19/5,938.72 = 1,362.06/x
  3. Step 3: Cross multiply
    3,959.19x = 5,938.72 × 1,362.06
  4. Step 4: Simplify right side
    3,959.19x = 8,088,889.56
  5. Step 5: Solve for x
    x = 8,088,889.56/3,959.19
  6. Step 6: Final answer
    x = 2,043.07

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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.