Home / 2,655.39-3,667.09-2,187.92

Finding the Fourth Proportional to 2,655.39, 3,667.09 and 2,187.92

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Solution

The fourth proportional to 2,655.39, 3,667.09 and 2,187.92 is: 3,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.39 : 3,667.09 = 2,187.92 : x
  2. Step 2: Convert to fraction form
    2,655.39/3,667.09 = 2,187.92/x
  3. Step 3: Cross multiply
    2,655.39x = 3,667.09 × 2,187.92
  4. Step 4: Simplify right side
    2,655.39x = 8,023,286.73
  5. Step 5: Solve for x
    x = 8,023,286.73/2,655.39
  6. Step 6: Final answer
    x = 3,021.51

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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.