Home / 3,849.47-5,312.32-2,255.73

Finding the Fourth Proportional to 3,849.47, 5,312.32 and 2,255.73

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Solution

The fourth proportional to 3,849.47, 5,312.32 and 2,255.73 is: 3,112.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.47 : 5,312.32 = 2,255.73 : x
  2. Step 2: Convert to fraction form
    3,849.47/5,312.32 = 2,255.73/x
  3. Step 3: Cross multiply
    3,849.47x = 5,312.32 × 2,255.73
  4. Step 4: Simplify right side
    3,849.47x = 11,983,153.95
  5. Step 5: Solve for x
    x = 11,983,153.95/3,849.47
  6. Step 6: Final answer
    x = 3,112.94

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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.