Home / 5,187.97-7,155.43-3,299.86

Finding the Fourth Proportional to 5,187.97, 7,155.43 and 3,299.86

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Solution

The fourth proportional to 5,187.97, 7,155.43 and 3,299.86 is: 4,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.97 : 7,155.43 = 3,299.86 : x
  2. Step 2: Convert to fraction form
    5,187.97/7,155.43 = 3,299.86/x
  3. Step 3: Cross multiply
    5,187.97x = 7,155.43 × 3,299.86
  4. Step 4: Simplify right side
    5,187.97x = 23,611,917.24
  5. Step 5: Solve for x
    x = 23,611,917.24/5,187.97
  6. Step 6: Final answer
    x = 4,551.28

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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.