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Finding the Fourth Proportional to 3,139.92, 4,682.48 and 2,751.73

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Solution

The fourth proportional to 3,139.92, 4,682.48 and 2,751.73 is: 4,103.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.92 : 4,682.48 = 2,751.73 : x
  2. Step 2: Convert to fraction form
    3,139.92/4,682.48 = 2,751.73/x
  3. Step 3: Cross multiply
    3,139.92x = 4,682.48 × 2,751.73
  4. Step 4: Simplify right side
    3,139.92x = 12,884,895.23
  5. Step 5: Solve for x
    x = 12,884,895.23/3,139.92
  6. Step 6: Final answer
    x = 4,103.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.