Home / 3,555.12-4,910.43-2,439.75

Finding the Fourth Proportional to 3,555.12, 4,910.43 and 2,439.75

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Solution

The fourth proportional to 3,555.12, 4,910.43 and 2,439.75 is: 3,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.12 : 4,910.43 = 2,439.75 : x
  2. Step 2: Convert to fraction form
    3,555.12/4,910.43 = 2,439.75/x
  3. Step 3: Cross multiply
    3,555.12x = 4,910.43 × 2,439.75
  4. Step 4: Simplify right side
    3,555.12x = 11,980,221.59
  5. Step 5: Solve for x
    x = 11,980,221.59/3,555.12
  6. Step 6: Final answer
    x = 3,369.85

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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.