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Finding the Fourth Proportional to 2,893.80, 3,995.73 and 2,672.66

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Solution

The fourth proportional to 2,893.80, 3,995.73 and 2,672.66 is: 3,690.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.80 : 3,995.73 = 2,672.66 : x
  2. Step 2: Convert to fraction form
    2,893.80/3,995.73 = 2,672.66/x
  3. Step 3: Cross multiply
    2,893.80x = 3,995.73 × 2,672.66
  4. Step 4: Simplify right side
    2,893.80x = 10,679,227.74
  5. Step 5: Solve for x
    x = 10,679,227.74/2,893.80
  6. Step 6: Final answer
    x = 3,690.38

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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.