Home / 2,082.70-2,874.50-1,243.45

Finding the Fourth Proportional to 2,082.70, 2,874.50 and 1,243.45

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Solution

The fourth proportional to 2,082.70, 2,874.50 and 1,243.45 is: 1,716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.70 : 2,874.50 = 1,243.45 : x
  2. Step 2: Convert to fraction form
    2,082.70/2,874.50 = 1,243.45/x
  3. Step 3: Cross multiply
    2,082.70x = 2,874.50 × 1,243.45
  4. Step 4: Simplify right side
    2,082.70x = 3,574,297.03
  5. Step 5: Solve for x
    x = 3,574,297.03/2,082.70
  6. Step 6: Final answer
    x = 1,716.18

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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.