Home / 3,455.82-4,767.68-2,127.22

Finding the Fourth Proportional to 3,455.82, 4,767.68 and 2,127.22

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Solution

The fourth proportional to 3,455.82, 4,767.68 and 2,127.22 is: 2,934.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.82 : 4,767.68 = 2,127.22 : x
  2. Step 2: Convert to fraction form
    3,455.82/4,767.68 = 2,127.22/x
  3. Step 3: Cross multiply
    3,455.82x = 4,767.68 × 2,127.22
  4. Step 4: Simplify right side
    3,455.82x = 10,141,904.25
  5. Step 5: Solve for x
    x = 10,141,904.25/3,455.82
  6. Step 6: Final answer
    x = 2,934.73

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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.