Home / 2,380.70-3,570.42-1,081.88

Finding the Fourth Proportional to 2,380.70, 3,570.42 and 1,081.88

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Solution

The fourth proportional to 2,380.70, 3,570.42 and 1,081.88 is: 1,622.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.70 : 3,570.42 = 1,081.88 : x
  2. Step 2: Convert to fraction form
    2,380.70/3,570.42 = 1,081.88/x
  3. Step 3: Cross multiply
    2,380.70x = 3,570.42 × 1,081.88
  4. Step 4: Simplify right side
    2,380.70x = 3,862,765.99
  5. Step 5: Solve for x
    x = 3,862,765.99/2,380.70
  6. Step 6: Final answer
    x = 1,622.53

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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.