Home / 3,359.72-5,039.58-1,279.23

Finding the Fourth Proportional to 3,359.72, 5,039.58 and 1,279.23

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Solution

The fourth proportional to 3,359.72, 5,039.58 and 1,279.23 is: 1,918.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,359.72 : 5,039.58 = 1,279.23 : x
  2. Step 2: Convert to fraction form
    3,359.72/5,039.58 = 1,279.23/x
  3. Step 3: Cross multiply
    3,359.72x = 5,039.58 × 1,279.23
  4. Step 4: Simplify right side
    3,359.72x = 6,446,781.92
  5. Step 5: Solve for x
    x = 6,446,781.92/3,359.72
  6. Step 6: Final answer
    x = 1,918.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.