Home / 5,420.88-8,119.98-3,463.11

Finding the Fourth Proportional to 5,420.88, 8,119.98 and 3,463.11

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Solution

The fourth proportional to 5,420.88, 8,119.98 and 3,463.11 is: 5,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.88 : 8,119.98 = 3,463.11 : x
  2. Step 2: Convert to fraction form
    5,420.88/8,119.98 = 3,463.11/x
  3. Step 3: Cross multiply
    5,420.88x = 8,119.98 × 3,463.11
  4. Step 4: Simplify right side
    5,420.88x = 28,120,383.94
  5. Step 5: Solve for x
    x = 28,120,383.94/5,420.88
  6. Step 6: Final answer
    x = 5,187.42

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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.