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Finding the Fourth Proportional to 1,821.48, 2,731.64 and 588.66

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Solution

The fourth proportional to 1,821.48, 2,731.64 and 588.66 is: 882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.48 : 2,731.64 = 588.66 : x
  2. Step 2: Convert to fraction form
    1,821.48/2,731.64 = 588.66/x
  3. Step 3: Cross multiply
    1,821.48x = 2,731.64 × 588.66
  4. Step 4: Simplify right side
    1,821.48x = 1,608,007.20
  5. Step 5: Solve for x
    x = 1,608,007.20/1,821.48
  6. Step 6: Final answer
    x = 882.80

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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.