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Finding the Fourth Proportional to 4,256.68, 6,381.13 and 1,791.67

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Solution

The fourth proportional to 4,256.68, 6,381.13 and 1,791.67 is: 2,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.68 : 6,381.13 = 1,791.67 : x
  2. Step 2: Convert to fraction form
    4,256.68/6,381.13 = 1,791.67/x
  3. Step 3: Cross multiply
    4,256.68x = 6,381.13 × 1,791.67
  4. Step 4: Simplify right side
    4,256.68x = 11,432,879.19
  5. Step 5: Solve for x
    x = 11,432,879.19/4,256.68
  6. Step 6: Final answer
    x = 2,685.87

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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.