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Finding the Fourth Proportional to 1,821.25, 2,732.01 and 588.79

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Solution

The fourth proportional to 1,821.25, 2,732.01 and 588.79 is: 883.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.25 : 2,732.01 = 588.79 : x
  2. Step 2: Convert to fraction form
    1,821.25/2,732.01 = 588.79/x
  3. Step 3: Cross multiply
    1,821.25x = 2,732.01 × 588.79
  4. Step 4: Simplify right side
    1,821.25x = 1,608,580.17
  5. Step 5: Solve for x
    x = 1,608,580.17/1,821.25
  6. Step 6: Final answer
    x = 883.23

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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.