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Finding the Fourth Proportional to 1,869.03, 2,801.79 and 635.57

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Solution

The fourth proportional to 1,869.03, 2,801.79 and 635.57 is: 952.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.03 : 2,801.79 = 635.57 : x
  2. Step 2: Convert to fraction form
    1,869.03/2,801.79 = 635.57/x
  3. Step 3: Cross multiply
    1,869.03x = 2,801.79 × 635.57
  4. Step 4: Simplify right side
    1,869.03x = 1,780,719.66
  5. Step 5: Solve for x
    x = 1,780,719.66/1,869.03
  6. Step 6: Final answer
    x = 952.75

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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.