Home / 1,630.26-2,249.82-1,000.80

Finding the Fourth Proportional to 1,630.26, 2,249.82 and 1,000.80

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Solution

The fourth proportional to 1,630.26, 2,249.82 and 1,000.80 is: 1,381.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.26 : 2,249.82 = 1,000.80 : x
  2. Step 2: Convert to fraction form
    1,630.26/2,249.82 = 1,000.80/x
  3. Step 3: Cross multiply
    1,630.26x = 2,249.82 × 1,000.80
  4. Step 4: Simplify right side
    1,630.26x = 2,251,619.86
  5. Step 5: Solve for x
    x = 2,251,619.86/1,630.26
  6. Step 6: Final answer
    x = 1,381.14

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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.