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Finding the Fourth Proportional to 2,893.49, 3,991.78 and 1,830.73

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Solution

The fourth proportional to 2,893.49, 3,991.78 and 1,830.73 is: 2,525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.49 : 3,991.78 = 1,830.73 : x
  2. Step 2: Convert to fraction form
    2,893.49/3,991.78 = 1,830.73/x
  3. Step 3: Cross multiply
    2,893.49x = 3,991.78 × 1,830.73
  4. Step 4: Simplify right side
    2,893.49x = 7,307,871.40
  5. Step 5: Solve for x
    x = 7,307,871.40/2,893.49
  6. Step 6: Final answer
    x = 2,525.63

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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.