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Finding the Fourth Proportional to 1,713.73, 2,570.57 and 415.19

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Solution

The fourth proportional to 1,713.73, 2,570.57 and 415.19 is: 622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.73 : 2,570.57 = 415.19 : x
  2. Step 2: Convert to fraction form
    1,713.73/2,570.57 = 415.19/x
  3. Step 3: Cross multiply
    1,713.73x = 2,570.57 × 415.19
  4. Step 4: Simplify right side
    1,713.73x = 1,067,274.96
  5. Step 5: Solve for x
    x = 1,067,274.96/1,713.73
  6. Step 6: Final answer
    x = 622.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.