Home / 5,109.29-7,660.06-2,642.54

Finding the Fourth Proportional to 5,109.29, 7,660.06 and 2,642.54

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Solution

The fourth proportional to 5,109.29, 7,660.06 and 2,642.54 is: 3,961.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.29 : 7,660.06 = 2,642.54 : x
  2. Step 2: Convert to fraction form
    5,109.29/7,660.06 = 2,642.54/x
  3. Step 3: Cross multiply
    5,109.29x = 7,660.06 × 2,642.54
  4. Step 4: Simplify right side
    5,109.29x = 20,242,027.50
  5. Step 5: Solve for x
    x = 20,242,027.50/5,109.29
  6. Step 6: Final answer
    x = 3,961.81

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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.