Home / 1,908.32-2,633.77-1,111.91

Finding the Fourth Proportional to 1,908.32, 2,633.77 and 1,111.91

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Solution

The fourth proportional to 1,908.32, 2,633.77 and 1,111.91 is: 1,534.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.32 : 2,633.77 = 1,111.91 : x
  2. Step 2: Convert to fraction form
    1,908.32/2,633.77 = 1,111.91/x
  3. Step 3: Cross multiply
    1,908.32x = 2,633.77 × 1,111.91
  4. Step 4: Simplify right side
    1,908.32x = 2,928,523.18
  5. Step 5: Solve for x
    x = 2,928,523.18/1,908.32
  6. Step 6: Final answer
    x = 1,534.61

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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.