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Finding the Fourth Proportional to 2,917.80, 4,375.38 and 837.33

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Solution

The fourth proportional to 2,917.80, 4,375.38 and 837.33 is: 1,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.80 : 4,375.38 = 837.33 : x
  2. Step 2: Convert to fraction form
    2,917.80/4,375.38 = 837.33/x
  3. Step 3: Cross multiply
    2,917.80x = 4,375.38 × 837.33
  4. Step 4: Simplify right side
    2,917.80x = 3,663,656.48
  5. Step 5: Solve for x
    x = 3,663,656.48/2,917.80
  6. Step 6: Final answer
    x = 1,255.62

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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.