Home / 6,914.91-10,372.41-1,720.79

Finding the Fourth Proportional to 6,914.91, 10,372.41 and 1,720.79

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Solution

The fourth proportional to 6,914.91, 10,372.41 and 1,720.79 is: 2,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,914.91 : 10,372.41 = 1,720.79 : x
  2. Step 2: Convert to fraction form
    6,914.91/10,372.41 = 1,720.79/x
  3. Step 3: Cross multiply
    6,914.91x = 10,372.41 × 1,720.79
  4. Step 4: Simplify right side
    6,914.91x = 17,848,687.54
  5. Step 5: Solve for x
    x = 17,848,687.54/6,914.91
  6. Step 6: Final answer
    x = 2,581.19

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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.