Home / 1,839.21-2,747.12-1,579.96

Finding the Fourth Proportional to 1,839.21, 2,747.12 and 1,579.96

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Solution

The fourth proportional to 1,839.21, 2,747.12 and 1,579.96 is: 2,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.21 : 2,747.12 = 1,579.96 : x
  2. Step 2: Convert to fraction form
    1,839.21/2,747.12 = 1,579.96/x
  3. Step 3: Cross multiply
    1,839.21x = 2,747.12 × 1,579.96
  4. Step 4: Simplify right side
    1,839.21x = 4,340,319.80
  5. Step 5: Solve for x
    x = 4,340,319.80/1,839.21
  6. Step 6: Final answer
    x = 2,359.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.