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Finding the Fourth Proportional to 2,218.94, 3,328.97 and 832.28

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Solution

The fourth proportional to 2,218.94, 3,328.97 and 832.28 is: 1,248.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.94 : 3,328.97 = 832.28 : x
  2. Step 2: Convert to fraction form
    2,218.94/3,328.97 = 832.28/x
  3. Step 3: Cross multiply
    2,218.94x = 3,328.97 × 832.28
  4. Step 4: Simplify right side
    2,218.94x = 2,770,635.15
  5. Step 5: Solve for x
    x = 2,770,635.15/2,218.94
  6. Step 6: Final answer
    x = 1,248.63

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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.