Home / 3,167.69-4,371.44-1,908.81

Finding the Fourth Proportional to 3,167.69, 4,371.44 and 1,908.81

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Solution

The fourth proportional to 3,167.69, 4,371.44 and 1,908.81 is: 2,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.69 : 4,371.44 = 1,908.81 : x
  2. Step 2: Convert to fraction form
    3,167.69/4,371.44 = 1,908.81/x
  3. Step 3: Cross multiply
    3,167.69x = 4,371.44 × 1,908.81
  4. Step 4: Simplify right side
    3,167.69x = 8,344,238.84
  5. Step 5: Solve for x
    x = 8,344,238.84/3,167.69
  6. Step 6: Final answer
    x = 2,634.18

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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.