Home / 3,360.12-4,640.61-2,245.78

Finding the Fourth Proportional to 3,360.12, 4,640.61 and 2,245.78

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Solution

The fourth proportional to 3,360.12, 4,640.61 and 2,245.78 is: 3,101.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.12 : 4,640.61 = 2,245.78 : x
  2. Step 2: Convert to fraction form
    3,360.12/4,640.61 = 2,245.78/x
  3. Step 3: Cross multiply
    3,360.12x = 4,640.61 × 2,245.78
  4. Step 4: Simplify right side
    3,360.12x = 10,421,789.13
  5. Step 5: Solve for x
    x = 10,421,789.13/3,360.12
  6. Step 6: Final answer
    x = 3,101.61

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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.