Home / 5,177.51-7,761.09-2,679.77

Finding the Fourth Proportional to 5,177.51, 7,761.09 and 2,679.77

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Solution

The fourth proportional to 5,177.51, 7,761.09 and 2,679.77 is: 4,016.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.51 : 7,761.09 = 2,679.77 : x
  2. Step 2: Convert to fraction form
    5,177.51/7,761.09 = 2,679.77/x
  3. Step 3: Cross multiply
    5,177.51x = 7,761.09 × 2,679.77
  4. Step 4: Simplify right side
    5,177.51x = 20,797,936.15
  5. Step 5: Solve for x
    x = 20,797,936.15/5,177.51
  6. Step 6: Final answer
    x = 4,016.98

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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.