Home / 5,215.92-7,198-2,858.04

Finding the Fourth Proportional to 5,215.92, 7,198 and 2,858.04

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Solution

The fourth proportional to 5,215.92, 7,198 and 2,858.04 is: 3,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.92 : 7,198 = 2,858.04 : x
  2. Step 2: Convert to fraction form
    5,215.92/7,198 = 2,858.04/x
  3. Step 3: Cross multiply
    5,215.92x = 7,198 × 2,858.04
  4. Step 4: Simplify right side
    5,215.92x = 20,572,171.92
  5. Step 5: Solve for x
    x = 20,572,171.92/5,215.92
  6. Step 6: Final answer
    x = 3,944.11

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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.