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Finding the Fourth Proportional to 1,260.82, 1,739.94 and 701.29

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Solution

The fourth proportional to 1,260.82, 1,739.94 and 701.29 is: 967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.82 : 1,739.94 = 701.29 : x
  2. Step 2: Convert to fraction form
    1,260.82/1,739.94 = 701.29/x
  3. Step 3: Cross multiply
    1,260.82x = 1,739.94 × 701.29
  4. Step 4: Simplify right side
    1,260.82x = 1,220,208.93
  5. Step 5: Solve for x
    x = 1,220,208.93/1,260.82
  6. Step 6: Final answer
    x = 967.79

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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.