Home / 4,109.42-5,671.26-2,340.78

Finding the Fourth Proportional to 4,109.42, 5,671.26 and 2,340.78

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Solution

The fourth proportional to 4,109.42, 5,671.26 and 2,340.78 is: 3,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.42 : 5,671.26 = 2,340.78 : x
  2. Step 2: Convert to fraction form
    4,109.42/5,671.26 = 2,340.78/x
  3. Step 3: Cross multiply
    4,109.42x = 5,671.26 × 2,340.78
  4. Step 4: Simplify right side
    4,109.42x = 13,275,171.98
  5. Step 5: Solve for x
    x = 13,275,171.98/4,109.42
  6. Step 6: Final answer
    x = 3,230.43

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Half scale
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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.