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Finding the Fourth Proportional to 1,708.25, 2,562.38 and 554

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Solution

The fourth proportional to 1,708.25, 2,562.38 and 554 is: 831

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.25 : 2,562.38 = 554 : x
  2. Step 2: Convert to fraction form
    1,708.25/2,562.38 = 554/x
  3. Step 3: Cross multiply
    1,708.25x = 2,562.38 × 554
  4. Step 4: Simplify right side
    1,708.25x = 1,419,555.75
  5. Step 5: Solve for x
    x = 1,419,555.75/1,708.25
  6. Step 6: Final answer
    x = 831

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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.