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Finding the Fourth Proportional to 2,893.73, 4,340.45 and 945.95

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Solution

The fourth proportional to 2,893.73, 4,340.45 and 945.95 is: 1,418.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.73 : 4,340.45 = 945.95 : x
  2. Step 2: Convert to fraction form
    2,893.73/4,340.45 = 945.95/x
  3. Step 3: Cross multiply
    2,893.73x = 4,340.45 × 945.95
  4. Step 4: Simplify right side
    2,893.73x = 4,105,829.34
  5. Step 5: Solve for x
    x = 4,105,829.34/2,893.73
  6. Step 6: Final answer
    x = 1,418.87

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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.