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Finding the Fourth Proportional to 1,425.10, 1,966.27 and 1,326

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Solution

The fourth proportional to 1,425.10, 1,966.27 and 1,326 is: 1,829.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.10 : 1,966.27 = 1,326 : x
  2. Step 2: Convert to fraction form
    1,425.10/1,966.27 = 1,326/x
  3. Step 3: Cross multiply
    1,425.10x = 1,966.27 × 1,326
  4. Step 4: Simplify right side
    1,425.10x = 2,607,274.02
  5. Step 5: Solve for x
    x = 2,607,274.02/1,425.10
  6. Step 6: Final answer
    x = 1,829.54

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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.