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Finding the Fourth Proportional to 2,254.37, 3,381.72 and 672.96

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Solution

The fourth proportional to 2,254.37, 3,381.72 and 672.96 is: 1,009.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.37 : 3,381.72 = 672.96 : x
  2. Step 2: Convert to fraction form
    2,254.37/3,381.72 = 672.96/x
  3. Step 3: Cross multiply
    2,254.37x = 3,381.72 × 672.96
  4. Step 4: Simplify right side
    2,254.37x = 2,275,759.58
  5. Step 5: Solve for x
    x = 2,275,759.58/2,254.37
  6. Step 6: Final answer
    x = 1,009.49

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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.