Home / 2,251.52-3,107.42-1,320.04

Finding the Fourth Proportional to 2,251.52, 3,107.42 and 1,320.04

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Solution

The fourth proportional to 2,251.52, 3,107.42 and 1,320.04 is: 1,821.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.52 : 3,107.42 = 1,320.04 : x
  2. Step 2: Convert to fraction form
    2,251.52/3,107.42 = 1,320.04/x
  3. Step 3: Cross multiply
    2,251.52x = 3,107.42 × 1,320.04
  4. Step 4: Simplify right side
    2,251.52x = 4,101,918.70
  5. Step 5: Solve for x
    x = 4,101,918.70/2,251.52
  6. Step 6: Final answer
    x = 1,821.84

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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.