Home / 2,128.28-2,936.75-1,184.04

Finding the Fourth Proportional to 2,128.28, 2,936.75 and 1,184.04

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Solution

The fourth proportional to 2,128.28, 2,936.75 and 1,184.04 is: 1,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.28 : 2,936.75 = 1,184.04 : x
  2. Step 2: Convert to fraction form
    2,128.28/2,936.75 = 1,184.04/x
  3. Step 3: Cross multiply
    2,128.28x = 2,936.75 × 1,184.04
  4. Step 4: Simplify right side
    2,128.28x = 3,477,223.55
  5. Step 5: Solve for x
    x = 3,477,223.55/2,128.28
  6. Step 6: Final answer
    x = 1,633.82

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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.