Home / 3,942.10-5,913.68-1,168.81

Finding the Fourth Proportional to 3,942.10, 5,913.68 and 1,168.81

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Solution

The fourth proportional to 3,942.10, 5,913.68 and 1,168.81 is: 1,753.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.10 : 5,913.68 = 1,168.81 : x
  2. Step 2: Convert to fraction form
    3,942.10/5,913.68 = 1,168.81/x
  3. Step 3: Cross multiply
    3,942.10x = 5,913.68 × 1,168.81
  4. Step 4: Simplify right side
    3,942.10x = 6,911,947.69
  5. Step 5: Solve for x
    x = 6,911,947.69/3,942.10
  6. Step 6: Final answer
    x = 1,753.37

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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.