Home / 2,082.62-3,123.80-1,170.62

Finding the Fourth Proportional to 2,082.62, 3,123.80 and 1,170.62

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Solution

The fourth proportional to 2,082.62, 3,123.80 and 1,170.62 is: 1,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.62 : 3,123.80 = 1,170.62 : x
  2. Step 2: Convert to fraction form
    2,082.62/3,123.80 = 1,170.62/x
  3. Step 3: Cross multiply
    2,082.62x = 3,123.80 × 1,170.62
  4. Step 4: Simplify right side
    2,082.62x = 3,656,782.76
  5. Step 5: Solve for x
    x = 3,656,782.76/2,082.62
  6. Step 6: Final answer
    x = 1,755.86

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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.