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Finding the Fourth Proportional to 2,343.26, 3,514.81 and 611.88

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Solution

The fourth proportional to 2,343.26, 3,514.81 and 611.88 is: 917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.26 : 3,514.81 = 611.88 : x
  2. Step 2: Convert to fraction form
    2,343.26/3,514.81 = 611.88/x
  3. Step 3: Cross multiply
    2,343.26x = 3,514.81 × 611.88
  4. Step 4: Simplify right side
    2,343.26x = 2,150,641.94
  5. Step 5: Solve for x
    x = 2,150,641.94/2,343.26
  6. Step 6: Final answer
    x = 917.80

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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.