Home / 2,375.72-3,278.26-1,381.06

Finding the Fourth Proportional to 2,375.72, 3,278.26 and 1,381.06

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Solution

The fourth proportional to 2,375.72, 3,278.26 and 1,381.06 is: 1,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.72 : 3,278.26 = 1,381.06 : x
  2. Step 2: Convert to fraction form
    2,375.72/3,278.26 = 1,381.06/x
  3. Step 3: Cross multiply
    2,375.72x = 3,278.26 × 1,381.06
  4. Step 4: Simplify right side
    2,375.72x = 4,527,473.76
  5. Step 5: Solve for x
    x = 4,527,473.76/2,375.72
  6. Step 6: Final answer
    x = 1,905.73

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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.