Home / 3,140.11-4,682.72-2,751.92

Finding the Fourth Proportional to 3,140.11, 4,682.72 and 2,751.92

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Solution

The fourth proportional to 3,140.11, 4,682.72 and 2,751.92 is: 4,103.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.11 : 4,682.72 = 2,751.92 : x
  2. Step 2: Convert to fraction form
    3,140.11/4,682.72 = 2,751.92/x
  3. Step 3: Cross multiply
    3,140.11x = 4,682.72 × 2,751.92
  4. Step 4: Simplify right side
    3,140.11x = 12,886,470.82
  5. Step 5: Solve for x
    x = 12,886,470.82/3,140.11
  6. Step 6: Final answer
    x = 4,103.83

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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.