Home / 3,178.36-4,763.90-1,329.14

Finding the Fourth Proportional to 3,178.36, 4,763.90 and 1,329.14

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Solution

The fourth proportional to 3,178.36, 4,763.90 and 1,329.14 is: 1,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.36 : 4,763.90 = 1,329.14 : x
  2. Step 2: Convert to fraction form
    3,178.36/4,763.90 = 1,329.14/x
  3. Step 3: Cross multiply
    3,178.36x = 4,763.90 × 1,329.14
  4. Step 4: Simplify right side
    3,178.36x = 6,331,890.05
  5. Step 5: Solve for x
    x = 6,331,890.05/3,178.36
  6. Step 6: Final answer
    x = 1,992.19

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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.