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Finding the Fourth Proportional to 2,713.43, 3,744.78 and 1,719.02

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Solution

The fourth proportional to 2,713.43, 3,744.78 and 1,719.02 is: 2,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713.43 : 3,744.78 = 1,719.02 : x
  2. Step 2: Convert to fraction form
    2,713.43/3,744.78 = 1,719.02/x
  3. Step 3: Cross multiply
    2,713.43x = 3,744.78 × 1,719.02
  4. Step 4: Simplify right side
    2,713.43x = 6,437,351.72
  5. Step 5: Solve for x
    x = 6,437,351.72/2,713.43
  6. Step 6: Final answer
    x = 2,372.40

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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.