Home / 5,177.67-7,761.07-2,255.19

Finding the Fourth Proportional to 5,177.67, 7,761.07 and 2,255.19

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Solution

The fourth proportional to 5,177.67, 7,761.07 and 2,255.19 is: 3,380.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.67 : 7,761.07 = 2,255.19 : x
  2. Step 2: Convert to fraction form
    5,177.67/7,761.07 = 2,255.19/x
  3. Step 3: Cross multiply
    5,177.67x = 7,761.07 × 2,255.19
  4. Step 4: Simplify right side
    5,177.67x = 17,502,687.45
  5. Step 5: Solve for x
    x = 17,502,687.45/5,177.67
  6. Step 6: Final answer
    x = 3,380.42

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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.