Home / 3,104.20-4,283.81-1,687.89

Finding the Fourth Proportional to 3,104.20, 4,283.81 and 1,687.89

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Solution

The fourth proportional to 3,104.20, 4,283.81 and 1,687.89 is: 2,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.20 : 4,283.81 = 1,687.89 : x
  2. Step 2: Convert to fraction form
    3,104.20/4,283.81 = 1,687.89/x
  3. Step 3: Cross multiply
    3,104.20x = 4,283.81 × 1,687.89
  4. Step 4: Simplify right side
    3,104.20x = 7,230,591.62
  5. Step 5: Solve for x
    x = 7,230,591.62/3,104.20
  6. Step 6: Final answer
    x = 2,329.29

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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.