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Finding the Fourth Proportional to 5,939.43, 8,910.45 and 1,779.81

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Solution

The fourth proportional to 5,939.43, 8,910.45 and 1,779.81 is: 2,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,939.43 : 8,910.45 = 1,779.81 : x
  2. Step 2: Convert to fraction form
    5,939.43/8,910.45 = 1,779.81/x
  3. Step 3: Cross multiply
    5,939.43x = 8,910.45 × 1,779.81
  4. Step 4: Simplify right side
    5,939.43x = 15,858,908.01
  5. Step 5: Solve for x
    x = 15,858,908.01/5,939.43
  6. Step 6: Final answer
    x = 2,670.11

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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.