Home / 3,849.83-5,312.75-2,081.44

Finding the Fourth Proportional to 3,849.83, 5,312.75 and 2,081.44

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Solution

The fourth proportional to 3,849.83, 5,312.75 and 2,081.44 is: 2,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.83 : 5,312.75 = 2,081.44 : x
  2. Step 2: Convert to fraction form
    3,849.83/5,312.75 = 2,081.44/x
  3. Step 3: Cross multiply
    3,849.83x = 5,312.75 × 2,081.44
  4. Step 4: Simplify right side
    3,849.83x = 11,058,143.80
  5. Step 5: Solve for x
    x = 11,058,143.80/3,849.83
  6. Step 6: Final answer
    x = 2,872.37

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1.5x scale

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.