Home / 3,945.56-5,914.19-1,479.30

Finding the Fourth Proportional to 3,945.56, 5,914.19 and 1,479.30

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Solution

The fourth proportional to 3,945.56, 5,914.19 and 1,479.30 is: 2,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.56 : 5,914.19 = 1,479.30 : x
  2. Step 2: Convert to fraction form
    3,945.56/5,914.19 = 1,479.30/x
  3. Step 3: Cross multiply
    3,945.56x = 5,914.19 × 1,479.30
  4. Step 4: Simplify right side
    3,945.56x = 8,748,853.87
  5. Step 5: Solve for x
    x = 8,748,853.87/3,945.56
  6. Step 6: Final answer
    x = 2,217.39

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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.