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Finding the Fourth Proportional to 1,344.52, 1,857.09 and 953.29

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Solution

The fourth proportional to 1,344.52, 1,857.09 and 953.29 is: 1,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.52 : 1,857.09 = 953.29 : x
  2. Step 2: Convert to fraction form
    1,344.52/1,857.09 = 953.29/x
  3. Step 3: Cross multiply
    1,344.52x = 1,857.09 × 953.29
  4. Step 4: Simplify right side
    1,344.52x = 1,770,345.33
  5. Step 5: Solve for x
    x = 1,770,345.33/1,344.52
  6. Step 6: Final answer
    x = 1,316.71

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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.