Home / 3,765.64-5,196.09-2,172.35

Finding the Fourth Proportional to 3,765.64, 5,196.09 and 2,172.35

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Solution

The fourth proportional to 3,765.64, 5,196.09 and 2,172.35 is: 2,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.64 : 5,196.09 = 2,172.35 : x
  2. Step 2: Convert to fraction form
    3,765.64/5,196.09 = 2,172.35/x
  3. Step 3: Cross multiply
    3,765.64x = 5,196.09 × 2,172.35
  4. Step 4: Simplify right side
    3,765.64x = 11,287,726.11
  5. Step 5: Solve for x
    x = 11,287,726.11/3,765.64
  6. Step 6: Final answer
    x = 2,997.56

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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.