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Finding the Fourth Proportional to 1,713.36, 2,570.84 and 543.54

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Solution

The fourth proportional to 1,713.36, 2,570.84 and 543.54 is: 815.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.36 : 2,570.84 = 543.54 : x
  2. Step 2: Convert to fraction form
    1,713.36/2,570.84 = 543.54/x
  3. Step 3: Cross multiply
    1,713.36x = 2,570.84 × 543.54
  4. Step 4: Simplify right side
    1,713.36x = 1,397,351.66
  5. Step 5: Solve for x
    x = 1,397,351.66/1,713.36
  6. Step 6: Final answer
    x = 815.56

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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.