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Finding the Fourth Proportional to 2,835.71, 4,253.77 and 755.70

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Solution

The fourth proportional to 2,835.71, 4,253.77 and 755.70 is: 1,133.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.71 : 4,253.77 = 755.70 : x
  2. Step 2: Convert to fraction form
    2,835.71/4,253.77 = 755.70/x
  3. Step 3: Cross multiply
    2,835.71x = 4,253.77 × 755.70
  4. Step 4: Simplify right side
    2,835.71x = 3,214,578.66
  5. Step 5: Solve for x
    x = 3,214,578.66/2,835.71
  6. Step 6: Final answer
    x = 1,133.61

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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.