Home / 3,849.88-5,312.81-2,081.48

Finding the Fourth Proportional to 3,849.88, 5,312.81 and 2,081.48

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Solution

The fourth proportional to 3,849.88, 5,312.81 and 2,081.48 is: 2,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.88 : 5,312.81 = 2,081.48 : x
  2. Step 2: Convert to fraction form
    3,849.88/5,312.81 = 2,081.48/x
  3. Step 3: Cross multiply
    3,849.88x = 5,312.81 × 2,081.48
  4. Step 4: Simplify right side
    3,849.88x = 11,058,484.07
  5. Step 5: Solve for x
    x = 11,058,484.07/3,849.88
  6. Step 6: Final answer
    x = 2,872.42

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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.