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Finding the Fourth Proportional to 2,376.54, 3,279.54 and 1,381.88

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Solution

The fourth proportional to 2,376.54, 3,279.54 and 1,381.88 is: 1,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.54 : 3,279.54 = 1,381.88 : x
  2. Step 2: Convert to fraction form
    2,376.54/3,279.54 = 1,381.88/x
  3. Step 3: Cross multiply
    2,376.54x = 3,279.54 × 1,381.88
  4. Step 4: Simplify right side
    2,376.54x = 4,531,930.74
  5. Step 5: Solve for x
    x = 4,531,930.74/2,376.54
  6. Step 6: Final answer
    x = 1,906.94

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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.