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Finding the Fourth Proportional to 1,713.78, 2,570.46 and 481.27

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Solution

The fourth proportional to 1,713.78, 2,570.46 and 481.27 is: 721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.78 : 2,570.46 = 481.27 : x
  2. Step 2: Convert to fraction form
    1,713.78/2,570.46 = 481.27/x
  3. Step 3: Cross multiply
    1,713.78x = 2,570.46 × 481.27
  4. Step 4: Simplify right side
    1,713.78x = 1,237,085.28
  5. Step 5: Solve for x
    x = 1,237,085.28/1,713.78
  6. Step 6: Final answer
    x = 721.85

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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.