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Finding the Fourth Proportional to 5,661.80, 8,488.26 and 2,739.32

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Solution

The fourth proportional to 5,661.80, 8,488.26 and 2,739.32 is: 4,106.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.80 : 8,488.26 = 2,739.32 : x
  2. Step 2: Convert to fraction form
    5,661.80/8,488.26 = 2,739.32/x
  3. Step 3: Cross multiply
    5,661.80x = 8,488.26 × 2,739.32
  4. Step 4: Simplify right side
    5,661.80x = 23,252,060.38
  5. Step 5: Solve for x
    x = 23,252,060.38/5,661.80
  6. Step 6: Final answer
    x = 4,106.83

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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.