Home / 3,449.16-4,761.78-2,640.09

Finding the Fourth Proportional to 3,449.16, 4,761.78 and 2,640.09

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Solution

The fourth proportional to 3,449.16, 4,761.78 and 2,640.09 is: 3,644.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.16 : 4,761.78 = 2,640.09 : x
  2. Step 2: Convert to fraction form
    3,449.16/4,761.78 = 2,640.09/x
  3. Step 3: Cross multiply
    3,449.16x = 4,761.78 × 2,640.09
  4. Step 4: Simplify right side
    3,449.16x = 12,571,527.76
  5. Step 5: Solve for x
    x = 12,571,527.76/3,449.16
  6. Step 6: Final answer
    x = 3,644.81

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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.