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Finding the Fourth Proportional to 2,733.20, 4,100.44 and 785.36

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Solution

The fourth proportional to 2,733.20, 4,100.44 and 785.36 is: 1,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,733.20 : 4,100.44 = 785.36 : x
  2. Step 2: Convert to fraction form
    2,733.20/4,100.44 = 785.36/x
  3. Step 3: Cross multiply
    2,733.20x = 4,100.44 × 785.36
  4. Step 4: Simplify right side
    2,733.20x = 3,220,321.56
  5. Step 5: Solve for x
    x = 3,220,321.56/2,733.20
  6. Step 6: Final answer
    x = 1,178.22

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1.5x scale

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.