Home / 2,375.97-3,278.56-1,381.09

Finding the Fourth Proportional to 2,375.97, 3,278.56 and 1,381.09

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Solution

The fourth proportional to 2,375.97, 3,278.56 and 1,381.09 is: 1,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.97 : 3,278.56 = 1,381.09 : x
  2. Step 2: Convert to fraction form
    2,375.97/3,278.56 = 1,381.09/x
  3. Step 3: Cross multiply
    2,375.97x = 3,278.56 × 1,381.09
  4. Step 4: Simplify right side
    2,375.97x = 4,527,986.43
  5. Step 5: Solve for x
    x = 4,527,986.43/2,375.97
  6. Step 6: Final answer
    x = 1,905.74

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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.