Home / 3,087.31-4,262.48-2,755.17

Finding the Fourth Proportional to 3,087.31, 4,262.48 and 2,755.17

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Solution

The fourth proportional to 3,087.31, 4,262.48 and 2,755.17 is: 3,803.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.31 : 4,262.48 = 2,755.17 : x
  2. Step 2: Convert to fraction form
    3,087.31/4,262.48 = 2,755.17/x
  3. Step 3: Cross multiply
    3,087.31x = 4,262.48 × 2,755.17
  4. Step 4: Simplify right side
    3,087.31x = 11,743,821.93
  5. Step 5: Solve for x
    x = 11,743,821.93/3,087.31
  6. Step 6: Final answer
    x = 3,803.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.