Home / 5,311.89-7,329.29-3,188.97

Finding the Fourth Proportional to 5,311.89, 7,329.29 and 3,188.97

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Solution

The fourth proportional to 5,311.89, 7,329.29 and 3,188.97 is: 4,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.89 : 7,329.29 = 3,188.97 : x
  2. Step 2: Convert to fraction form
    5,311.89/7,329.29 = 3,188.97/x
  3. Step 3: Cross multiply
    5,311.89x = 7,329.29 × 3,188.97
  4. Step 4: Simplify right side
    5,311.89x = 23,372,869.99
  5. Step 5: Solve for x
    x = 23,372,869.99/5,311.89
  6. Step 6: Final answer
    x = 4,400.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.