Home / 5,101.75-7,655.55-2,761.75

Finding the Fourth Proportional to 5,101.75, 7,655.55 and 2,761.75

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Solution

The fourth proportional to 5,101.75, 7,655.55 and 2,761.75 is: 4,144.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.75 : 7,655.55 = 2,761.75 : x
  2. Step 2: Convert to fraction form
    5,101.75/7,655.55 = 2,761.75/x
  3. Step 3: Cross multiply
    5,101.75x = 7,655.55 × 2,761.75
  4. Step 4: Simplify right side
    5,101.75x = 21,142,715.21
  5. Step 5: Solve for x
    x = 21,142,715.21/5,101.75
  6. Step 6: Final answer
    x = 4,144.21

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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.