Home / 3,845.32-5,767.76-1,379.48

Finding the Fourth Proportional to 3,845.32, 5,767.76 and 1,379.48

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Solution

The fourth proportional to 3,845.32, 5,767.76 and 1,379.48 is: 2,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.32 : 5,767.76 = 1,379.48 : x
  2. Step 2: Convert to fraction form
    3,845.32/5,767.76 = 1,379.48/x
  3. Step 3: Cross multiply
    3,845.32x = 5,767.76 × 1,379.48
  4. Step 4: Simplify right side
    3,845.32x = 7,956,508.86
  5. Step 5: Solve for x
    x = 7,956,508.86/3,845.32
  6. Step 6: Final answer
    x = 2,069.14

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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.