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Finding the Fourth Proportional to 1,629.92, 2,249.27 and 883.88

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Solution

The fourth proportional to 1,629.92, 2,249.27 and 883.88 is: 1,219.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.92 : 2,249.27 = 883.88 : x
  2. Step 2: Convert to fraction form
    1,629.92/2,249.27 = 883.88/x
  3. Step 3: Cross multiply
    1,629.92x = 2,249.27 × 883.88
  4. Step 4: Simplify right side
    1,629.92x = 1,988,080.85
  5. Step 5: Solve for x
    x = 1,988,080.85/1,629.92
  6. Step 6: Final answer
    x = 1,219.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.