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Finding the Fourth Proportional to 1,801.23, 2,702.21 and 705.62

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Solution

The fourth proportional to 1,801.23, 2,702.21 and 705.62 is: 1,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.23 : 2,702.21 = 705.62 : x
  2. Step 2: Convert to fraction form
    1,801.23/2,702.21 = 705.62/x
  3. Step 3: Cross multiply
    1,801.23x = 2,702.21 × 705.62
  4. Step 4: Simplify right side
    1,801.23x = 1,906,716.38
  5. Step 5: Solve for x
    x = 1,906,716.38/1,801.23
  6. Step 6: Final answer
    x = 1,058.56

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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.