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Finding the Fourth Proportional to 1,476.85, 2,037.97 and 813.73

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Solution

The fourth proportional to 1,476.85, 2,037.97 and 813.73 is: 1,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.85 : 2,037.97 = 813.73 : x
  2. Step 2: Convert to fraction form
    1,476.85/2,037.97 = 813.73/x
  3. Step 3: Cross multiply
    1,476.85x = 2,037.97 × 813.73
  4. Step 4: Simplify right side
    1,476.85x = 1,658,357.33
  5. Step 5: Solve for x
    x = 1,658,357.33/1,476.85
  6. Step 6: Final answer
    x = 1,122.90

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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.