Home / 3,127.12-4,292.44-2,765.11

Finding the Fourth Proportional to 3,127.12, 4,292.44 and 2,765.11

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Solution

The fourth proportional to 3,127.12, 4,292.44 and 2,765.11 is: 3,795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.12 : 4,292.44 = 2,765.11 : x
  2. Step 2: Convert to fraction form
    3,127.12/4,292.44 = 2,765.11/x
  3. Step 3: Cross multiply
    3,127.12x = 4,292.44 × 2,765.11
  4. Step 4: Simplify right side
    3,127.12x = 11,869,086.80
  5. Step 5: Solve for x
    x = 11,869,086.80/3,127.12
  6. Step 6: Final answer
    x = 3,795.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.