Home / 3,103.65-4,277.03-2,900.61

Finding the Fourth Proportional to 3,103.65, 4,277.03 and 2,900.61

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Solution

The fourth proportional to 3,103.65, 4,277.03 and 2,900.61 is: 3,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.65 : 4,277.03 = 2,900.61 : x
  2. Step 2: Convert to fraction form
    3,103.65/4,277.03 = 2,900.61/x
  3. Step 3: Cross multiply
    3,103.65x = 4,277.03 × 2,900.61
  4. Step 4: Simplify right side
    3,103.65x = 12,405,981.49
  5. Step 5: Solve for x
    x = 12,405,981.49/3,103.65
  6. Step 6: Final answer
    x = 3,997.22

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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.