Home / 4,908.30-7,363.17-1,620.78

Finding the Fourth Proportional to 4,908.30, 7,363.17 and 1,620.78

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Solution

The fourth proportional to 4,908.30, 7,363.17 and 1,620.78 is: 2,431.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.30 : 7,363.17 = 1,620.78 : x
  2. Step 2: Convert to fraction form
    4,908.30/7,363.17 = 1,620.78/x
  3. Step 3: Cross multiply
    4,908.30x = 7,363.17 × 1,620.78
  4. Step 4: Simplify right side
    4,908.30x = 11,934,078.67
  5. Step 5: Solve for x
    x = 11,934,078.67/4,908.30
  6. Step 6: Final answer
    x = 2,431.41

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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.