Home / 2,082.32-2,874.12-1,297.28

Finding the Fourth Proportional to 2,082.32, 2,874.12 and 1,297.28

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Solution

The fourth proportional to 2,082.32, 2,874.12 and 1,297.28 is: 1,790.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.32 : 2,874.12 = 1,297.28 : x
  2. Step 2: Convert to fraction form
    2,082.32/2,874.12 = 1,297.28/x
  3. Step 3: Cross multiply
    2,082.32x = 2,874.12 × 1,297.28
  4. Step 4: Simplify right side
    2,082.32x = 3,728,538.39
  5. Step 5: Solve for x
    x = 3,728,538.39/2,082.32
  6. Step 6: Final answer
    x = 1,790.57

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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.