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Finding the Fourth Proportional to 1,850.13, 2,775.02 and 551.61

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Solution

The fourth proportional to 1,850.13, 2,775.02 and 551.61 is: 827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.13 : 2,775.02 = 551.61 : x
  2. Step 2: Convert to fraction form
    1,850.13/2,775.02 = 551.61/x
  3. Step 3: Cross multiply
    1,850.13x = 2,775.02 × 551.61
  4. Step 4: Simplify right side
    1,850.13x = 1,530,726.02
  5. Step 5: Solve for x
    x = 1,530,726.02/1,850.13
  6. Step 6: Final answer
    x = 827.36

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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.