Home / 5,402.51-8,108.79-2,771.90

Finding the Fourth Proportional to 5,402.51, 8,108.79 and 2,771.90

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Solution

The fourth proportional to 5,402.51, 8,108.79 and 2,771.90 is: 4,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.51 : 8,108.79 = 2,771.90 : x
  2. Step 2: Convert to fraction form
    5,402.51/8,108.79 = 2,771.90/x
  3. Step 3: Cross multiply
    5,402.51x = 8,108.79 × 2,771.90
  4. Step 4: Simplify right side
    5,402.51x = 22,476,755.00
  5. Step 5: Solve for x
    x = 22,476,755.00/5,402.51
  6. Step 6: Final answer
    x = 4,160.43

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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.