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Finding the Fourth Proportional to 2,874.82, 4,311.66 and 794.28

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Solution

The fourth proportional to 2,874.82, 4,311.66 and 794.28 is: 1,191.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.82 : 4,311.66 = 794.28 : x
  2. Step 2: Convert to fraction form
    2,874.82/4,311.66 = 794.28/x
  3. Step 3: Cross multiply
    2,874.82x = 4,311.66 × 794.28
  4. Step 4: Simplify right side
    2,874.82x = 3,424,665.30
  5. Step 5: Solve for x
    x = 3,424,665.30/2,874.82
  6. Step 6: Final answer
    x = 1,191.26

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1.5x scale

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.