Home / 3,828.11-5,283.09-2,149.88

Finding the Fourth Proportional to 3,828.11, 5,283.09 and 2,149.88

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Solution

The fourth proportional to 3,828.11, 5,283.09 and 2,149.88 is: 2,967.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.11 : 5,283.09 = 2,149.88 : x
  2. Step 2: Convert to fraction form
    3,828.11/5,283.09 = 2,149.88/x
  3. Step 3: Cross multiply
    3,828.11x = 5,283.09 × 2,149.88
  4. Step 4: Simplify right side
    3,828.11x = 11,357,983.11
  5. Step 5: Solve for x
    x = 11,357,983.11/3,828.11
  6. Step 6: Final answer
    x = 2,967.00

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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.