Home / 3,447.32-4,757.58-2,121.48

Finding the Fourth Proportional to 3,447.32, 4,757.58 and 2,121.48

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Solution

The fourth proportional to 3,447.32, 4,757.58 and 2,121.48 is: 2,927.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.32 : 4,757.58 = 2,121.48 : x
  2. Step 2: Convert to fraction form
    3,447.32/4,757.58 = 2,121.48/x
  3. Step 3: Cross multiply
    3,447.32x = 4,757.58 × 2,121.48
  4. Step 4: Simplify right side
    3,447.32x = 10,093,110.82
  5. Step 5: Solve for x
    x = 10,093,110.82/3,447.32
  6. Step 6: Final answer
    x = 2,927.81

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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.