Home / 3,669.64-5,063.96-1,991.02

Finding the Fourth Proportional to 3,669.64, 5,063.96 and 1,991.02

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Solution

The fourth proportional to 3,669.64, 5,063.96 and 1,991.02 is: 2,747.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.64 : 5,063.96 = 1,991.02 : x
  2. Step 2: Convert to fraction form
    3,669.64/5,063.96 = 1,991.02/x
  3. Step 3: Cross multiply
    3,669.64x = 5,063.96 × 1,991.02
  4. Step 4: Simplify right side
    3,669.64x = 10,082,445.64
  5. Step 5: Solve for x
    x = 10,082,445.64/3,669.64
  6. Step 6: Final answer
    x = 2,747.53

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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.