Home / 2,133.29-2,943.87-1,189.04

Finding the Fourth Proportional to 2,133.29, 2,943.87 and 1,189.04

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Solution

The fourth proportional to 2,133.29, 2,943.87 and 1,189.04 is: 1,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.29 : 2,943.87 = 1,189.04 : x
  2. Step 2: Convert to fraction form
    2,133.29/2,943.87 = 1,189.04/x
  3. Step 3: Cross multiply
    2,133.29x = 2,943.87 × 1,189.04
  4. Step 4: Simplify right side
    2,133.29x = 3,500,379.18
  5. Step 5: Solve for x
    x = 3,500,379.18/2,133.29
  6. Step 6: Final answer
    x = 1,640.84

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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.