Home / 2,909.97-4,363.13-2,119.61

Finding the Fourth Proportional to 2,909.97, 4,363.13 and 2,119.61

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Solution

The fourth proportional to 2,909.97, 4,363.13 and 2,119.61 is: 3,178.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.97 : 4,363.13 = 2,119.61 : x
  2. Step 2: Convert to fraction form
    2,909.97/4,363.13 = 2,119.61/x
  3. Step 3: Cross multiply
    2,909.97x = 4,363.13 × 2,119.61
  4. Step 4: Simplify right side
    2,909.97x = 9,248,133.98
  5. Step 5: Solve for x
    x = 9,248,133.98/2,909.97
  6. Step 6: Final answer
    x = 3,178.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.