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Finding the Fourth Proportional to 1,813.90, 2,503.17 and 1,027.95

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Solution

The fourth proportional to 1,813.90, 2,503.17 and 1,027.95 is: 1,418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.90 : 2,503.17 = 1,027.95 : x
  2. Step 2: Convert to fraction form
    1,813.90/2,503.17 = 1,027.95/x
  3. Step 3: Cross multiply
    1,813.90x = 2,503.17 × 1,027.95
  4. Step 4: Simplify right side
    1,813.90x = 2,573,133.60
  5. Step 5: Solve for x
    x = 2,573,133.60/1,813.90
  6. Step 6: Final answer
    x = 1,418.56

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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.