Home / 5,187.41-7,781.10-3,108.04

Finding the Fourth Proportional to 5,187.41, 7,781.10 and 3,108.04

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Solution

The fourth proportional to 5,187.41, 7,781.10 and 3,108.04 is: 4,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.41 : 7,781.10 = 3,108.04 : x
  2. Step 2: Convert to fraction form
    5,187.41/7,781.10 = 3,108.04/x
  3. Step 3: Cross multiply
    5,187.41x = 7,781.10 × 3,108.04
  4. Step 4: Simplify right side
    5,187.41x = 24,183,938.94
  5. Step 5: Solve for x
    x = 24,183,938.94/5,187.41
  6. Step 6: Final answer
    x = 4,662.05

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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.