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Finding the Fourth Proportional to 1,754.63, 2,629.68 and 713.42

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Solution

The fourth proportional to 1,754.63, 2,629.68 and 713.42 is: 1,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.63 : 2,629.68 = 713.42 : x
  2. Step 2: Convert to fraction form
    1,754.63/2,629.68 = 713.42/x
  3. Step 3: Cross multiply
    1,754.63x = 2,629.68 × 713.42
  4. Step 4: Simplify right side
    1,754.63x = 1,876,053.16
  5. Step 5: Solve for x
    x = 1,876,053.16/1,754.63
  6. Step 6: Final answer
    x = 1,069.20

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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.