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Finding the Fourth Proportional to 2,781.73, 4,173.13 and 833.77

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Solution

The fourth proportional to 2,781.73, 4,173.13 and 833.77 is: 1,250.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.73 : 4,173.13 = 833.77 : x
  2. Step 2: Convert to fraction form
    2,781.73/4,173.13 = 833.77/x
  3. Step 3: Cross multiply
    2,781.73x = 4,173.13 × 833.77
  4. Step 4: Simplify right side
    2,781.73x = 3,479,407.65
  5. Step 5: Solve for x
    x = 3,479,407.65/2,781.73
  6. Step 6: Final answer
    x = 1,250.81

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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.