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Finding the Fourth Proportional to 1,797.06, 2,693.97 and 642.54

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Solution

The fourth proportional to 1,797.06, 2,693.97 and 642.54 is: 963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,797.06 : 2,693.97 = 642.54 : x
  2. Step 2: Convert to fraction form
    1,797.06/2,693.97 = 642.54/x
  3. Step 3: Cross multiply
    1,797.06x = 2,693.97 × 642.54
  4. Step 4: Simplify right side
    1,797.06x = 1,730,983.48
  5. Step 5: Solve for x
    x = 1,730,983.48/1,797.06
  6. Step 6: Final answer
    x = 963.23

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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.