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Finding the Fourth Proportional to 2,893.11, 3,992.57 and 1,773.40

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Solution

The fourth proportional to 2,893.11, 3,992.57 and 1,773.40 is: 2,447.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.11 : 3,992.57 = 1,773.40 : x
  2. Step 2: Convert to fraction form
    2,893.11/3,992.57 = 1,773.40/x
  3. Step 3: Cross multiply
    2,893.11x = 3,992.57 × 1,773.40
  4. Step 4: Simplify right side
    2,893.11x = 7,080,429.90
  5. Step 5: Solve for x
    x = 7,080,429.90/2,893.11
  6. Step 6: Final answer
    x = 2,447.34

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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.