Home / 3,755.19-5,180.90-2,181.99

Finding the Fourth Proportional to 3,755.19, 5,180.90 and 2,181.99

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Solution

The fourth proportional to 3,755.19, 5,180.90 and 2,181.99 is: 3,010.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.19 : 5,180.90 = 2,181.99 : x
  2. Step 2: Convert to fraction form
    3,755.19/5,180.90 = 2,181.99/x
  3. Step 3: Cross multiply
    3,755.19x = 5,180.90 × 2,181.99
  4. Step 4: Simplify right side
    3,755.19x = 11,304,661.08
  5. Step 5: Solve for x
    x = 11,304,661.08/3,755.19
  6. Step 6: Final answer
    x = 3,010.41

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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.