Home / 3,081.12-4,622.49-2,687.46

Finding the Fourth Proportional to 3,081.12, 4,622.49 and 2,687.46

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Solution

The fourth proportional to 3,081.12, 4,622.49 and 2,687.46 is: 4,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.12 : 4,622.49 = 2,687.46 : x
  2. Step 2: Convert to fraction form
    3,081.12/4,622.49 = 2,687.46/x
  3. Step 3: Cross multiply
    3,081.12x = 4,622.49 × 2,687.46
  4. Step 4: Simplify right side
    3,081.12x = 12,422,756.98
  5. Step 5: Solve for x
    x = 12,422,756.98/3,081.12
  6. Step 6: Final answer
    x = 4,031.90

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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.