Home / 3,849.98-5,312.93-2,081.57

Finding the Fourth Proportional to 3,849.98, 5,312.93 and 2,081.57

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Solution

The fourth proportional to 3,849.98, 5,312.93 and 2,081.57 is: 2,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.98 : 5,312.93 = 2,081.57 : x
  2. Step 2: Convert to fraction form
    3,849.98/5,312.93 = 2,081.57/x
  3. Step 3: Cross multiply
    3,849.98x = 5,312.93 × 2,081.57
  4. Step 4: Simplify right side
    3,849.98x = 11,059,198.73
  5. Step 5: Solve for x
    x = 11,059,198.73/3,849.98
  6. Step 6: Final answer
    x = 2,872.54

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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.