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Finding the Fourth Proportional to 2,303.73, 3,179.16 and 1,255.77

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Solution

The fourth proportional to 2,303.73, 3,179.16 and 1,255.77 is: 1,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.73 : 3,179.16 = 1,255.77 : x
  2. Step 2: Convert to fraction form
    2,303.73/3,179.16 = 1,255.77/x
  3. Step 3: Cross multiply
    2,303.73x = 3,179.16 × 1,255.77
  4. Step 4: Simplify right side
    2,303.73x = 3,992,293.75
  5. Step 5: Solve for x
    x = 3,992,293.75/2,303.73
  6. Step 6: Final answer
    x = 1,732.97

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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.