Home / 1,538.16-2,122.62-1,414.32

Finding the Fourth Proportional to 1,538.16, 2,122.62 and 1,414.32

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Solution

The fourth proportional to 1,538.16, 2,122.62 and 1,414.32 is: 1,951.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.16 : 2,122.62 = 1,414.32 : x
  2. Step 2: Convert to fraction form
    1,538.16/2,122.62 = 1,414.32/x
  3. Step 3: Cross multiply
    1,538.16x = 2,122.62 × 1,414.32
  4. Step 4: Simplify right side
    1,538.16x = 3,002,063.92
  5. Step 5: Solve for x
    x = 3,002,063.92/1,538.16
  6. Step 6: Final answer
    x = 1,951.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.