Home / 3,103.29-4,282.47-1,908.81

Finding the Fourth Proportional to 3,103.29, 4,282.47 and 1,908.81

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Solution

The fourth proportional to 3,103.29, 4,282.47 and 1,908.81 is: 2,634.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.29 : 4,282.47 = 1,908.81 : x
  2. Step 2: Convert to fraction form
    3,103.29/4,282.47 = 1,908.81/x
  3. Step 3: Cross multiply
    3,103.29x = 4,282.47 × 1,908.81
  4. Step 4: Simplify right side
    3,103.29x = 8,174,421.56
  5. Step 5: Solve for x
    x = 8,174,421.56/3,103.29
  6. Step 6: Final answer
    x = 2,634.11

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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.