Home / 1,962.22-2,709.82-1,644.28

Finding the Fourth Proportional to 1,962.22, 2,709.82 and 1,644.28

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Solution

The fourth proportional to 1,962.22, 2,709.82 and 1,644.28 is: 2,270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.22 : 2,709.82 = 1,644.28 : x
  2. Step 2: Convert to fraction form
    1,962.22/2,709.82 = 1,644.28/x
  3. Step 3: Cross multiply
    1,962.22x = 2,709.82 × 1,644.28
  4. Step 4: Simplify right side
    1,962.22x = 4,455,702.83
  5. Step 5: Solve for x
    x = 4,455,702.83/1,962.22
  6. Step 6: Final answer
    x = 2,270.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.