Home / 2,661.96-3,671.82-2,225.64

Finding the Fourth Proportional to 2,661.96, 3,671.82 and 2,225.64

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Solution

The fourth proportional to 2,661.96, 3,671.82 and 2,225.64 is: 3,069.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.96 : 3,671.82 = 2,225.64 : x
  2. Step 2: Convert to fraction form
    2,661.96/3,671.82 = 2,225.64/x
  3. Step 3: Cross multiply
    2,661.96x = 3,671.82 × 2,225.64
  4. Step 4: Simplify right side
    2,661.96x = 8,172,149.46
  5. Step 5: Solve for x
    x = 8,172,149.46/2,661.96
  6. Step 6: Final answer
    x = 3,069.97

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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.