Home / 3,369.92-5,052.36-1,289.12

Finding the Fourth Proportional to 3,369.92, 5,052.36 and 1,289.12

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Solution

The fourth proportional to 3,369.92, 5,052.36 and 1,289.12 is: 1,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.92 : 5,052.36 = 1,289.12 : x
  2. Step 2: Convert to fraction form
    3,369.92/5,052.36 = 1,289.12/x
  3. Step 3: Cross multiply
    3,369.92x = 5,052.36 × 1,289.12
  4. Step 4: Simplify right side
    3,369.92x = 6,513,098.32
  5. Step 5: Solve for x
    x = 6,513,098.32/3,369.92
  6. Step 6: Final answer
    x = 1,932.72

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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.